Hakozushi is one of the signature sushi styles of the Kansai region.
The difference in the use of sugar between Kansai-style pressed sushi and Kanto-style nigiri sushi (Edomae sushi) reflects not merely a matter of taste preference, but a fundamental difference in the very philosophy underlying sushi as a dish.
Kansai-style pressed sushi (such as Hakozushi and Battera) developed within a sushi culture that originally prioritized preservation. The fish is thoroughly marinated in vinegar, acquiring a sour note in exchange for umami. Furthermore, when firmly pressed into a wooden mold, the toppings and vinegared rice adhere closely together, forming a structure that enters the mouth as a single, unified entity.
The key element here is acidity from vinegar. The acidity of the vinegar-cured fish and the vinegared rice often overlap, making the dish feel overly sour. This is where sugar comes into play. Sugar is not merely used to add sweetness; it serves to soften that acidity and guide the overall flavor toward harmony.
This approach to flavor building in Kansai is consistent with a trend seen throughout Kansai cuisine. Rather than allowing strong flavors to stand on their own, the philosophy is to blend them into the whole and create harmony. This concept is also reflected in Kansai’s dashi culture, where sweetness is used as an extension of that philosophy. Sugar is not merely a sweetener; it is a crucial component that softens acidity and brings the entire flavor together.
On the other hand, Kanto-style nigiri sushi—often referred to as Edomae sushi—is best understood as a rice-driven style. Nigiri sushi is prepared in front of the customer and is intended to be eaten immediately, but it is the design of the rice that underpins its final form.
The rice is not merely “rice beneath the toppings”; it is a base that complements every topping while accommodating each one’s unique character. The balance of vinegar, the amount of salt, and the use of sugar are adjusted not to homogenize the varying flavors of each topping, but to bring out the best in each ingredient.
Sugar is sometimes used here, but its purpose is limited. It serves only to slightly soften the sharpness of the vinegar, refine the mouthfeel, or provide light cohesion—it does not form the central axis of the flavor. Rather, the rice functions as a common structural framework that accommodates any topping while ensuring the integrity of each individual piece of sushi.
Viewed in this light, Kanto-style nigiri sushi is not a dish where the toppings take center stage; rather, it is a dish whose integrity is established through the design of the rice. The rice ensures that the dish remains intact regardless of the topping used and allows each topping’s individual character to shine.
The difference in the use of sugar is not merely a matter of quantity. It illustrates the contrast between two distinct aesthetics in Japanese sushi: whether to build up flavors into a single unified form or to use a common structure to bring diverse ingredients into harmony.
Although Kansai-style pressed sushi and Edomae-style nigiri sushi (Edomae sushi) are both categorized as “sushi,” their historical backgrounds and underlying philosophies differ significantly. The differences between the two go far beyond shape; they reflect distinct urban structures, distribution environments, and regional attitudes toward food.
In particular, Kansai-style pressed sushi (Hakozushi and Bozushi) developed under the conditions of preservation and transport. Its core regions include urban centers such as Osaka and Kyoto, where refrigeration technology as we know it today did not exist. As a result, it was difficult to transport seafood over long distances while keeping it fresh. This made extending the shelf life of ingredients a central concern in culinary development.
Within these constraints, a method emerged in which vinegared rice and toppings were layered in a wooden mold and pressed firmly from above. Oshi-zushi is not merely a shaping technique. The pressure helps remove excess air and moisture, slows bacterial growth, and improves shelf stability. Vinegar itself also has antibacterial properties, and when combined with fish, it became a highly practical form of preserved food for its time.
In addition, oshi-zushi offers a high degree of physical stability. Pressing the ingredients into a wooden mold creates a compact, block-like form with uniform thickness and density. This makes it resistant to crumbling, easy to slice, and well-suited for transport. It is especially practical for celebrations, festivals, and travel meals, striking a strong balance between practicality and refined presentation.
This “molded form” is also closely tied to the aesthetic sensibilities of Kansai food culture. The cross-section of oshi-zushi reveals fish and vinegared rice arranged in precise, geometric layers, creating a visual presentation reminiscent of an edible artwork. In this sense, it is not only a dish to be tasted, but also one meant to be seen.
In contrast, Edomae sushi developed under entirely different conditions. In Tokyo, as population density increased and urban life expanded, a vibrant street food culture emerged. Here, the emphasis was on immediacy—being able to eat sushi right away, convenience, and enjoying freshness at the moment of service. As a result, sushi evolved into a form centered on instant consumption.
The shari is shaped just enough to hold its form without falling apart.
A defining feature of nigiri sushi is that the rice is gently shaped to retain air, creating a light, tender texture. This is not simply about softness. The air allows the rice to break apart easily in the mouth, while the fish and rice are designed to come together and dissolve simultaneously, creating a unified flavor experience. In other words, nigiri sushi is designed to deliver a culinary experience that is complete the moment it is formed, emphasizing lightness and immediacy.
What is important here is that the difference between the two is not simply technical, but reflects fundamentally different ideas of how food should reach its peak condition. Kansai-style pressed sushi is designed to remain stable and well-balanced even after some time has passed. Edomae nigiri sushi, on the other hand, is designed to be at its best immediately after it is made.
In this sense, oshi-zushi is a style of sushi that maintains its quality over time, while nigiri sushi is a style that reaches its peak in an instant.
What makes this even more interesting is that both share the same foundation of vinegared rice. Using the same core ingredient, entirely different eating experiences are created simply through physical technique—pressing versus shaping. This demonstrates that Japanese cuisine is not merely dependent on ingredients but is a highly refined culinary culture built on structure and design.
Ultimately, pressing oshi-zushi firmly is not just about compression, but a practical method of achieving preservation, structure, and visual harmony at the same time. Conversely, gently incorporating air into nigiri sushi is a deliberate design choice to maximize fleeting texture, aroma, and mouthfeel.
Although both are forms of sushi, the key difference lies in how each is designed to reach its optimal eating condition.
The rice on the left in the photo is short-grain rice, and the rice on the right is long-grain rice.
It is not a simple yes-or-no question. More precisely, it might be said that short-grain rice is often considered ideal because it best suits the structural demands of sushi as a culinary form.
Sushi—particularly nigiri—does not treat rice and fish as separate components to be eaten independently. Rather, it is predicated on a moment of convergence: as it is eaten, the shari and the topping begin to loosen and merge into one another, forming a single, unified impression. The quality of sushi is largely determined by how naturally and effortlessly this transition occurs. In this sense, rice is not merely a staple ingredient but an essential structural element of the dish itself.
The preference for short-grain rice lies primarily in its tendency to loosen. When cooked, it retains a gentle cohesion, yet yields readily under minimal pressure. This quality is fully expressed in the hands of a skilled sushi chef, who shapes it with extraordinary subtlety rather than force. The result is a form that holds just long enough at room temperature, yet dissolves almost instantly once it reaches the palate—a form defined by structure without rigidity.
Equally important is the balance between vinegared rice and topping. In sushi, the seafood is meant to take the lead; the rice is there to support and elevate it. Larger grains, however, tend to assert themselves in texture, drawing attention to the act of chewing itself and, in doing so, risk shifting focus away from the delicacy of white fishor the lingering richness of fatty cuts. Short-grain rice, by contrast, recedes more gracefully, enveloping the topping without overwhelming it, allowing the flavors of the fish to remain at the center of attention.
Short-grain rice is preferred for nigiri sushi.
There is also the matter of form. Nigiri sushi is not “pressed” in any mechanical sense; it is shaped through a controlled incorporation of air, a balance of compression and restraint. Short-grain rice, with its greater number of contact points, binds more readily under light pressure, making it easier to achieve the elusive texture often described as “light” or “airy.” This structure is not meant to endure—it is designed to yield, elegantly, at the exact moment of consumption.
And yet, grain size alone should not be mistaken for the essence of sushi rice. What ultimately matters is the interplay of moisture, seasoning, temperature, and technique. Even medium-grain varieties can produce excellent sushi when handled with precision. The ideal, therefore, is not fixed in the grain itself, but in the harmony it is able to participate in.
Ultimately, the preference for short-grain rice is less a rule than a tendency—one shaped by how sushi is eaten, and what it is meant to be: a fleeting moment of coherence, assembled only to dissolve.
In the past, it was common to serve cucumbers alongside Ikura.
When you order Ikura gunkan-maki (salmon roe sushi), you may notice a small strip of cucumber placed alongside it. It’s the kind of detail that often makes people pause and wonder: why is there a cucumber next to the salmon roe? At first glance, it might seem like a decorative afterthought, but in fact, it reflects a subtle design logic within sushi-making.
The first reason comes down to flavor balance. Ikura is typically seasoned with soy sauce, giving it a rich, salty, umami-forward profile. While that intensity is part of its appeal, it can also start to feel heavy when eaten in succession. The cucumber, with its clean, watery freshness, helps lighten that sensation and refresh the palate between bites. In that sense, it serves as a subtle counterpoint that keeps the ikura’s richness in check.
Texture plays an equally important role. Ikura is prized for its signature “pop” — those bursts of briny flavor that release in the mouth. But on its own, that texture can feel repetitive. The crisp snap of the cucumber introduces contrast, adding variation to each bite and making the experience more dynamic.
Currently, this type of Ikura gunkan maki is the most popular.
That said, not every sushi restaurant uses cucumber in this way. In fact, many high-end sushi restaurants serve ikura gunkan with no cucumber at all, focusing entirely on the salmon roe itself. The idea is to present ikura in its purest form — highlighting its texture, temperature, and seasoning without distraction. In these settings, simplicity is intentional: the ingredient is meant to stand on its own.
At the same time, the version with cucumber has remained widely used, particularly in casual and conveyor-belt sushi settings. In these contexts, consistency, visual appeal, and cost control all play an important role. The addition of cucumber helps create a balanced, visually full presentation, even with a smaller portion of ikura, while also introducing a contrasting color that makes the piece more eye-catching. In this sense, the cucumber is not merely a garnish, but part of a practical design that supports both presentation and efficiency in a high-volume dining environment.
Visually, however, the version with cucumber has its own appeal. The bright orange of ikura against the deep green of cucumber creates a striking contrast that feels deliberate and refined. Sushi is often as much about visual composition as it is about taste, and even a small element like this contributes to the overall aesthetic of the piece.
Some people assume the cucumber is simply acost-saving trick to reduce the amount of ikura. While that interpretation exists, it misses the point of how sushi is generally conceived. In most cases, especially in traditional or well-considered preparation, the focus is not on substitution or reduction, but on shaping the overall experience — taste, texture, and presentation working together as a whole.
In the end, the cucumber next to the ikura gunkan isn’t there because it’s necessary. It’s there because it changes the experience in subtle ways — softening the richness, adding texture, and refining the visual balance. And in sushi, those small decisions are often exactly what define the craft.
Salmon boasts a vibrant orange color, a good amount of fat, and a melt-in-your-mouth texture.
Salmon is the most popular item at conveyor-belt sushi restaurants in Japan, and demand continues to grow both domestically and globally. In response, Japan’s salmon farming industry has been rapidly expanding. Domestic production is projected to reach approximately 33,000–34,000 tons in 2026, up about 10% from the previous year and marking a new record. This growth is driven by both traditional sea-based aquaculture and the rapid development of land-based farming using Recirculating Aquaculture Systems (RAS).
In coastal regions such as Aomori and Hokkaido, sea-based farming remains a core production method. In the cold, fast-moving waters of the Tsugaru Strait, salmon develop firm flesh and rich fat content—qualities highly valued for sushi and sashimi. Companies such as Okamura Foods are leading this sector by introducing advanced Nordic technologies and large-scale farming systems. Working closely with local fishing communities, they produce branded fish such as “Aomori Salmon,” while expanding operations to include land-based hatcheries and remote-controlled feeding systems.
At the same time, Japan is seeing significant investment in land-based aquaculture. Pure Salmon Japan is developing one of the world’s largest RAS facilities in Tsu, Mie Prefecture, with a planned annual capacity of 10,000 tons. Other major players include FUJI ATLANTIC SALMON in Shizuoka, Atland (a joint venture between Mitsubishi Corporation and Umios) in Toyama, and FRD Japan in Saitama. These operations aim to produce high-quality salmon with fully controlled water conditions, reducing disease risk and enabling year-round production.
A defining characteristic of Japan’s salmon farming industry is its diversity of species and local brands. Farmed salmon in Japan includes a range of types, each with unique traits. Below is a detailed overview of major salmon species and brands:
Despite this growth, Japan still relies heavily on imports, with around 80% of its salmon sourced from Northern Europe and South America. However, global factors are reshaping the market. The Ukraine–Russia conflict has increased air freight costs and extended delivery times from Norway, while geopolitical tensions involving the Middle East, including Iran and the United States, have driven up oil and electricity prices. These factors not only raise import costs—already up roughly 60% over the past five years—but also impact domestic production, particularly energy-intensive land-based systems.
Each farming method presents its own advantages and challenges. Sea-based farming allows for large-scale production and natural growth conditions but is vulnerable to environmental risks such as red tides and disease. Land-based RAS systems offer precise control over water quality and eliminate marine pollution, yet require substantial capital investment and high energy consumption. Hybrid systems, in which fish are raised on land before being transferred to the sea, provide a balance between efficiency and quality but add operational complexity.
Looking ahead, Japan’s ability to establish itself as a major salmon-producing nation will depend on how effectively it integrates these approaches. Expanding branded domestic production, improving energy efficiency, and leveraging technological innovation will be essential. At the same time, imported salmon is likely to remain important for premium markets, while domestic farmed salmon increasingly supports local demand.
In this evolving landscape, Japan’s salmon industry is shifting from import dependence toward a more diversified and resilient production model—one that combines regional identity, species diversity, and advanced aquaculture technology.
Until about 20 years ago, very few people outside Japan ate uni (sea urchin), so most of the world’s sea urchin was exported to Japan. Major producing countries included Chile, the United States, Russia, and China. Japan provided technical guidance to these countries, and today they produce sea urchin of quality comparable to Japan’s.
As sushi has gained global popularity, more people have begun eating sea urchin. A video of Los Angeles Dodgers player Freddie Freeman trying sea urchin for the first time in Tokyo—encouraged by his teammates—and reacting with surprise at how delicious it was went viral. It seems likely that even more people will develop a taste for sea urchin.
At the same time, rising sea temperatures and other environmental factors have reduced the seaweed that sea urchins feed on, leading to declining catches worldwide. As a result, prices at Toyosu Market have surged. For example, on January 5, 2026, at the first auction of the year at Toyosu Market, purple sea urchin fetched a record-breaking 35 million yen in a joint bid. The uni bowl made from it reportedly cost 1.1 million yen. While this is an extreme case, the typical price for a single piece of uni gunkan-maki ranges from 500 to 5,000 yen.
Now to the main question: what types of sea urchin are actually served at sushi restaurants?
There are six edible varieties of sea urchin in Japan. One of them, shirahige uni (collector urchin), is harvested only in small quantities in warm waters such as Okinawa, so it is not served at sushi restaurants in Tokyo. The varieties commonly served at sushi restaurants are:
Closed seasons and peak harvest times vary by species. However, many sushi chefs do not clearly know which specific species they are serving. This is largely because Toyosu Market does not strictly label them by species. In practice, chefs infer the type based on season and harvest location.
Murasaki uni and Bafun uni are each further divided into two subtypes. In some regions, Murasaki uni is referred to as “kuro uni (black sea urchin)” based on its appearance. However, there is no species officially called black sea urchin—it is simply a type of Murasaki uni.
The appearance of aka uni
At Toyosu Market, sea urchin is typically categorized into three groups: Murasaki uni, Bafun uni, and Aka uni. This is the general commercial classification.
Broadly speaking, Murasaki uni, Bafun uni, and Aka uni prefer warmer waters and are harvested west of the Kansai region. In contrast, Kitamurasaki uni and Ezobafun uni prefer colder waters and are harvested in Hokkaido and the Tohoku region.
Fishing takes place year-round somewhere in Hokkaido, but each area has designated closed seasons. Kitamurasaki uni is not harvested on the eastern side of Hokkaido. Both Kitamurasaki uni and Ezobafun uni are harvested on the western side of Hokkaido, primarily from June through August.
The edible portion of sea urchin is the reproductive organ, which appears yellow to orange. Confusingly, in the sushi trade, Murasaki uni is sometimes referred to as “white,” while Bafun uni is called “red,” based on the color of the edible portion. Aka uni has only been commonly served at sushi restaurants for about the past decade; before that, the industry largely used the simple categories “white” and “red.” Incidentally, the “red” in Aka uni refers to the color of its shell.
A common rule of thumb is that Murasaki uni is yellow and Bafun uni is orange, but this is not absolute. Since sea urchin is often sold removed from its shell, it is actually difficult to distinguish the species visually—even though there are only five main varieties in circulation. The sea urchin sold at the first auction of 2026 was Kitamurasaki uni, not Murasaki uni. Even the media appeared to misunderstand this distinction.
In conclusion, when you visit a sushi restaurant in Tokyo, sea urchin is almost always served as a single variety in gunkan-maki style. There is a greater than 50% chance that it will be either Kitamurasaki uni or Ezobafun uni. High-end sushi restaurants may offer both varieties depending on the season. Traditional sushi establishments often prefer the lighter, more delicate flavor of Kitamurasaki uni. Restaurants with direct sourcing relationships may also serve Aka uni.
It is also common for Ezobafun uni to be labeled simply as “Bafun uni.” Even if different types were mixed, most customers would not be able to tell. If a sushi restaurant west of Kansai refers to it as Bafun uni, it is highly likely that it is indeed Bafun uni.
A Complete Guide to Japan’s Essential Sweet Cooking Wine
Mirin is one of the foundational seasonings in Japanese cuisine. It is widely used in dishes such as teriyaki, simmered foods, sukiyaki, mitarashi dango, and tamagoyaki. Its ability to add gentle sweetness, depth, and a beautiful glossy finish makes it indispensable in Japanese cooking.
While mirin is rarely used in sushi restaurants, substitutes like sugar or sake are not the same. To truly understand Japanese cuisine, it helps to understand mirin properly.
1. What Is Mirin?
Definition
Mirin is a traditional Japanese sweet cooking wine made from glutinous rice, rice koji (rice inoculated with fermentation mold), and shochu (distilled alcohol). Unlike simple sweeteners, mirin develops its sweetness naturally through enzymatic saccharification and aging.
The result is a seasoning that provides sweetness, depth, and shine — all at once.
Alcohol Content
Authentic mirin, known as hon mirin, contains approximately 13–14% alcohol by volume. Under Japanese law, it is classified as an alcoholic beverage and is regulated accordingly.
When heated during cooking, most of the alcohol evaporates, leaving behind sweetness and flavor.
Flavor Characteristics
Mirin’s sweetness is mild and rounded rather than sharp. It comes from multiple naturally occurring sugars such as glucose and various oligosaccharides.
During cooking, mirin:
Adds gentle sweetness
Enhances depth and umami
Creates a glossy finish
Helps balance saltiness
Aging also produces amino acids and organic acids that contribute complexity and richness.
2. Types of Mirin
Not all mirin is the same. There are several categories available in Japan and abroad.
Hon mirin is made through traditional saccharification and aging. Some versions contain added sugar, while others rely entirely on natural enzymatic conversion. Both qualify as hon mirin if made from the core ingredients.
This type provides the most depth, gloss, and authentic flavor.
Mirin-Style Seasoning
Alcohol: Less than 1% Salt: Less than 1%
This product was developed to avoid liquor taxes. It contains added sugars and flavor enhancers to approximate mirin’s taste.
Advantages:
Lower cost
Can be used without cooking off alcohol
Widely available
However, it lacks the complexity of hon mirin.
Salted Mirin (Fermented Seasoning)
Alcohol: Typically 8–14% Salt: About 2%
Salt is added to prevent it from being classified as alcohol under tax law. Because of the salt content, seasoning adjustments are necessary when cooking.
3. The History of Mirin
Mirin is believed to have originated between the Warring States period and early Edo period. There is no definitive consensus on its origins, and two major theories exist.
Chinese Origin Theory
A Ming Dynasty Chinese text mentions a sweet liquor called “mi-lin (密淋),” described as sweet like dripping honey. Some scholars believe this beverage was introduced to Japan via Ryukyu and Kyushu during the Warring States period and gradually evolved into hon mirin.
Japanese Origin Theory
Japan already had sweet rice-based alcoholic drinks such as nerizake (練酒) and shirozake (白酒). Records from the 15th century describe sweet liquors brewed in Hakata.
These early drinks were sweet but prone to spoilage. The later addition of distilled alcohol (shochu) improved preservation and stability, eventually leading to modern mirin production.
From Sweet Drink to Essential Seasoning
By the mid-Edo period, mirin was popular as a sweet alcoholic beverage. As Japanese culinary culture matured, it gradually shifted from being consumed as a drink to being used as a seasoning.
By the late Edo period, records clearly show mirin being used in eel sauce and soba dipping sauce in the Kanto region. From that point forward, mirin became an essential component of Japanese cuisine.
4. How Hon Mirin Is Made
Hon mirin differs from sake in one crucial way: it does not rely on yeast fermentation.
Instead, shochu is added at the beginning. The alcohol activates enzymes in the rice koji, which break down starch in the glutinous rice into sugars.
Key Steps
Steamed glutinous rice is prepared.
Rice koji provides enzymes (amylase and protease).
Shochu is added.
Saccharification and aging occur over time.
During this process:
Amylase converts starch into sugars.
Protease breaks proteins into amino acids.
Sugars, amino acids, and organic acids interact during aging to create depth and complexity.
Pressing and Finishing
After maturation, the mash is pressed to separate:
Mirin liquid
Mirin lees
The liquid is filtered and bottled.
Traditional breweries may use wooden press methods, while modern facilities often use mechanical or centrifugal systems.
5. The Role of Mirin in Cooking
Mirin does far more than add sweetness.
Reduces Unwanted Odors
When heated, alcohol evaporates and helps carry away unwanted odors from meat and fish. Aging compounds also help mask strong smells.
Prevents Ingredients from Falling Apart
Sugars and alcohol interact with the surface of ingredients during cooking, helping them maintain their shape. This is especially useful in simmered dishes.
Adds Depth and Umami
Because mirin contains amino acids and organic acids, it adds more than sweetness — it enhances overall flavor complexity.
Provides Gloss and Shine
As it cooks, mirin forms a light glaze on the surface of food, creating the beautiful shine seen in teriyaki dishes.
Enhances Flavor Penetration
Alcohol helps other seasonings permeate ingredients more effectively, resulting in deeper flavor absorption.
6. Choosing Between Hon Mirin and Mirin-Style Seasoning
Choose Mirin-Style If:
You want convenience
You prefer lower alcohol
You need a budget-friendly option
Choose Hon Mirin If:
You want deeper flavor
You care about authentic results
You are making traditional simmered or glazed dishes
If using hon mirin without cooking, you may want to briefly simmer it first to evaporate the alcohol.
7. Storage Tips
After opening, store mirin in a cool, dark place or in the refrigerator. Over time, it may darken slightly — this is a natural result of maturation.
Avoid over-reducing it during cooking, as excessive heat can concentrate sweetness too much.
8. Availability Outside Japan
Outside Japan, hon mirin and mirin-style seasonings are typically available at Japanese grocery stores and some Asian markets.
Common substitutes such as white wine mixed with sugar or sake with added sugar may approximate sweetness, but they do not replicate mirin’s complexity, gloss, or depth.
Final Thoughts
Mirin is far more than a sweetener. It is a carefully crafted cooking wine that adds balance, shine, depth, and refinement to Japanese cuisine.
Understanding the difference between hon mirin and imitation products allows you to cook Japanese dishes with greater authenticity and precision.
Kochi’s Inaka sushi (pronounced inaka-zushi in Japanese) is a unique style of sushi that developed in the mountainous regions of the prefecture. Unlike typical nigiri sushi (pronounced nigiri-zushi), which highlights seafood, Inaka sushi is defined by topping vinegared rice with locally harvested vegetables and wild mountain greens.
Although Kochi Prefecture faces the Pacific Ocean and is known for its seafood, Inaka sushi originated in inland areas where fresh fish was scarce. It emerged from the ingenuity of mountain communities, who created special dishes using the ingredients they had on hand. At the time, rice was a precious commodity, and sushi was mainly prepared for special occasions such as weddings, funerals, and festivals. Compared to fish-based sushi, Inaka sushi was more affordable and kept longer, eventually becoming a staple in everyday life.
Representative Ingredients
The main ingredients of Inaka sushi are familiar staples in mountain villages:
Myoga (Japanese ginger): Boiled and pickled in sweet vinegar, myoga ginger highlights its refreshing aroma and vibrant color. It is traditionally prepared to welcome guests.
Ryukyu (taro stem): Also called hasuimo, this taro variety is eaten only for its stem, which has a crisp, satisfying texture. The stems are lightly prepared to maintain their crunch.
Konjac: In areas where fried tofu was not readily available, mountain communities used konjac as a substitute. The konjac is shaped into a pouch, cut, and simmered in a sweet-savory sauce to absorb flavor.
Shiitake mushrooms: Simmered with dashi, sugar, and soy sauce to enhance their natural umami. Some recipes also include small dried fish or finely grated raw fish for a simple, rustic flavor.
Bamboo shoots and zenmai (royal fern): Seasonal mountain vegetables that appear primarily in early spring.
Each ingredient is individually seasoned and placed on slightly sweet vinegared rice, then gently pressed. While visually similar to nigiri sushi, Inaka sushi’s charm lies in its mild flavor, which allows the natural taste of the ingredients to shine. Its colorful presentation—red myoga, green ryukyu, dark shiitake, and yellow bamboo shoots—reflects the vibrant hues characteristic of Kochi’s cuisine.
Seasoning and Vinegared Rice
Inaka sushi is made with slightly sweet vinegared rice, seasoned with a balanced mix of vinegar and sugar. The toppings are often simmered in a sweet-savory sauce, creating a gentle, rounded flavor profile. Rather than relying on strong saltiness or fatty richness, the dish is defined by the harmony of dashi and sweet vinegar. In Kochi, citrus fruits such as yuzu are sometimes added to the sushi vinegar, giving the rice a subtle aromatic note.
Role as Festive Food
Traditionally, Inaka sushi was prepared not for daily meals, but for special occasions such as festivals, celebrations, or visits from guests. The sight of community members arranging colorful sushi on large platters symbolizes the cooperative culture of mountain villages. Today, Inaka sushi can be enjoyed at local restaurants, farmers’ markets, and specialty shops throughout the prefecture, including around Kochi City, making it accessible for both locals and tourists.
Modern Significance
Inaka sushi is often plant-based, making it well-suited for vegans and vegetarians. However, its essence lies not in replacing fish-based sushi, but in the creativity and resourcefulness of mountain communities using local ingredients. As a “mountain sushi” distinct from ocean-based nigiri, Inaka sushi reflects the climate, landscape, and daily life of Kochi, representing a unique regional food culture.
The snails of the genera Ezobora and Ezobai are collectively called “tsubu” or “bai,” with over 30 species available in the market.
The appearance of Ezoboro (Matsubu)
The “salivary glands (commonly called ‘abura’)” of Ezobora species like Matsubu (Neptunea polycostata Scarlato,1952), Ezoboramodoki (Neptunea intersculpta (Sowerby Ⅲ,1899)), Kuriiroezobora (Neptunea cf. lamellosa Golikov,1962), Atsuezobora (Neptunea heros (Gray,1850)), Chijimiezobora (Neptunea constricta (Dall,1907)), and Aotsubu (Neptunea (Barbitonia) arthritica (Bernardi,1857)) contain a toxin called “tetramine.”
Tetramine poisoning occurs when Tsubu snails are consumed without removing the salivary glands. This toxin does not break down with heating, so proper removal of the salivary glands before cooking is essential, regardless of whether the snails are eaten raw or cooked.
Symptoms typically appear about 30 minutes after consumption and include visual disturbances such as double vision, dizziness, headache, and a sensation of seasickness. While there have been no fatalities to date, and recovery usually occurs within a few hours, symptoms can be severe in some individuals.
When people hear “Shojin Ryori,” some might imagine a simple meal with just one soup and one dish. On the other hand, thanks to media coverage, others might picture luxurious, elaborate cuisine. Shojin Ryori began as the meals of Buddhist monks, which seem quite simple at first glance. However, dishes served as offerings to the Buddha or for special occasions—called “Hare” meals, traditional celebratory menus—can be elaborate enough to rival kaiseki cuisine at high-end Japanese restaurants.
This guide will help you understand the essence of Shojin Ryori and experience its depth firsthand.
What is Shojin?
The term “Shojin” (精進) comes either from Shoshojin (正精進), one of the Eightfold Paths taught by Shakyamuni Buddha to escape life’s suffering, or from Shojin, one of the Six Paramitas in Mahayana Buddhism.
Shojin in the Six Paramitas: Fuse (布施), Jikai (持戒), Ninniku (忍辱), Shojin (精進), Zenjo (禅定), Chie (智慧)
The concept corresponds to the ancient Indian Sanskrit term “Virya,” meaning “the mental effort to abandon harmful deeds and cultivate good ones” or “the single-minded pursuit of the Buddha Way without distraction.” Though hard for most people to grasp, it basically means not being lax—to devote oneself wholeheartedly to Buddhist practice.
Shojin Ryori—the cuisine that developed to support the health of practicing monks—is more than just vegetarian food. It is part of spiritual cultivation. Its purpose is not to indulge the taste buds, but to purify the mind and body and support practice. Every aspect—from ingredient selection and cooking methods to presentation and the act of eating—is an extension of the practice itself.
The Five Precepts (Gokai)
Shojin Ryori is rooted in the Five Precepts (五戒) that monks and Buddhists follow:
Fuseshokai（不殺生戒）: Do not harm living beings → no meat or fish
Fuchutoukai（不偸盗戒）: Do not steal
Fujainkai（不邪淫戒）: Avoid improper sexual conduct
Fumougokai（不妄語戒）: Do not lie
Fuonjukai（不飲酒戒）: Do not drink alcohol
Many Zen temples also have signs at their gates warning, “No entry for those consuming strong-smelling vegetables or alcohol (不許入葷酒山門).” These pungent vegetables—garlic, leeks, shallots, onions, and chives—along with alcohol, are avoided because they can hinder spiritual practice.
What is Gokun (五葷)?
Shojin Ryori avoids:
Birds, beasts, fish, and shellfish
The five pungent vegetables (garlic, leeks, shallots, onions, and chives)
Instead, it focuses on vegetables, beans, tofu, seaweed, and grains. Flavor, texture, and appearance are carefully balanced through cooking techniques and presentation. In short, Shojin Ryori is more than just meat-free cuisine; it is food designed to calm the mind and support spiritual practice. Originating in Mahayana Buddhism, it spread from India to China, Korea, and Japan.
Historical Development in Japan
Shojin Ryori began as a simple, austere diet guided by religious taboos. Over time, Japanese culinary sensibilities transformed it into a refined cuisine with vegetables as the stars of each dish.
From the Kamakura period onward, influenced by Zen Buddhism, Shojin Ryori became more sophisticated. Broths incorporated kombu and dried shiitake mushrooms, and soy-based items like goma tofu (sesame tofu), yuba (tofu skin), and ganmodoki (fried soybean patties) flourished. Techniques were refined to maximize umami, texture, and visual appeal—all without animal ingredients.
Shojin Ryori also influenced the development of kaiseki cuisine in the tea ceremony, becoming a cornerstone of Japanese culinary tradition. Today, its legacy continues primarily in Kyoto, in temples and specialty restaurants.
Modern Practice and Tourist Experience
Over time, meals consumed by laypeople during Buddhist ceremonies or celebrations also came to be called “Shojin Ryori,” broadening its meaning.
Today, Shojin Ryori is recognized not just as a religious practice but also as the origin of vegan and plant-based cuisine. Its true essence lies in honoring life, calming the mind, and harmonizing with nature, not merely following dietary restrictions.
Visitors can also enjoy Shojin Ryori as a tourist experience, such as Shojin Kaiseki at temple lodgings. These visually striking, multi-course meals—featuring tofu, vegetables, and seaweed prepared in various ways—offer a unique cultural experience enjoyed by visitors.
Staying at historic sites like Koyasan provides an opportunity to experience the spirit of ascetic practice and Japanese Buddhist culture through Shojin Ryori.
Choosing soy sauce based on its manufacturing process significantly impacts the aroma, taste, and appearance of your dishes. Three common types—nama-shoyu (unpasteurized soy sauce), ki-joyu (standard brewed soy sauce), and nikiri-shoyu (cooked soy sauce)—each have distinct characteristics and uses. Understanding these differences will help you select the right soy sauce for enhancing the natural taste of ingredients and achieving the perfect balance in your dishes.
Nama-shoyu (なま醤油)
The appearance of nama-shoyu
Nama-shoyu is an unpasteurized soy sauce characterized by its rich aroma and flavor. It skips the typical pasteurization process (sterilization of microorganisms) used in regular soy sauce, instead relying on precise filtration to remove yeast and microorganisms, ensuring freshness and safety. Because it is unheated, applying heat during cooking further enhances its aroma, allowing you to enjoy a vibrant color that highlights the natural hues and flavors of ingredients, along with a mellow, smooth umami taste.
Due to its living microbial nature, it maintains freshness at room temperature when stored in a sealed double-layered bottle that prevents exposure to air. Refrigeration after opening is sometimes recommended. It is ideal for sashimi, cold dishes, or as a finishing soy sauce, where enhancing the aroma and color of ingredients is desired.
Incidentally, unpasteurized pressed soy sauce is sometimes called “kiage-shoyu.” Since it hasn’t undergone heat sterilization or filtration, it’s soy sauce that retains microorganisms like lactic acid bacteria and yeast.
Ki-joyu (生醤油)
Ki-joyu is originally a term from the culinary industry, referring to soy sauce made solely from “soybeans, wheat, and salt,” which has undergone pasteurization. Pasteurization is the process of heating raw soy sauce to inactivate microorganisms and enzymes, thereby adjusting its aroma and flavor. This heating deepens the color, creates the characteristic savory aroma and taste of soy sauce, and produces a mellow overall impression.
Under JAS regulations, the only permitted additive is salt. Products labeled with only “soybeans, wheat, salt” on their ingredient list are ki-joyu. This signifies a pure soy sauce with no additional seasoning, suitable for a wide range of dishes like simmered and grilled foods. It also boasts a longer shelf life and more stable flavor compared to nama-shoyu. For sushi, ki-joyu is preferred over nikiri-shoyu when the soy sauce’s inherent, wonderful aroma is prioritized.
Nikiri-shoyu is a seasoned liquid made by adding mirin, sake, and sometimes dashi such as bonito broth to soy sauce, then heating it to evaporate the alcohol. “Nikiri” refers to the cooking technique of heating mirin or sake to evaporate its alcohol content, said to have originated with Edo-period street stall sushi. Evaporating the alcohol softens the sharpness of the soy sauce, enhancing the umami without overpowering the flavor of the seafood toppings. Furthermore, adding dashi incorporates its umami components, creating a deeper, more complex flavor. In sushi restaurants, it is used for all types of seafood sushi toppings.
Summary:
Nama-shoyu is best used for raw or cold dishes, as it brings out the natural color and aroma of the ingredients. Ki-joyu is a versatile, pure soy sauce that works well in cooked dishes when the soy sauce’s own flavor is desired. Nikiri-shoyu is a seasoned, umami-rich soy sauce, perfect for enhancing the taste of all types of sushi toppings.
It’s not Takoyaki (たこ焼き), but Taiyaki (たい焼き). The “Tai” in Taiyaki refers to red seabream (Madai), and “Yaki” means grilled. Literally, it means grilled red seabream. However, Taiyaki is a traditional Japanese sweet made by cooking batter filled with sweet red bean paste in a fish-shaped mold. It is based on a wheat-flour batter similar to pancakes or waffles and is usually enjoyed hot, straight off the grill. Loved by people of all ages, taiyaki is a familiar street snack in Japan—easy to eat, comforting, and deeply connected to everyday life rather than formal occasions.
２．Why is Taiyaki shaped like a red seabream?
The shape of taiyaki is no accident. The red seabream (tai in Japanese) has long been considered a lucky fish because its name sounds like medetai, which means “joyful” or “auspicious.”
For centuries, red seabream has been served at celebrations, festivals, and special occasions in Japan as a symbol of happiness and good fortune. Since real sea bream was expensive, it was mostly enjoyed by the wealthy.
When taiyaki was created in the late Meiji period, bakers chose the red seabream shape to bring this sense of luck and celebration to ordinary people in an affordable and fun form. Today, taiyaki is not only a beloved sweet treat but also a small symbol of good fortune that anyone can enjoy.
2-1. What is Okashira-tuki?
Okashira-tuki (尾頭付き) refers to fish served whole, with both head (頭) and tail (尾) intact. In Japan, grilled Okashira-tuki of red sea bream is especially favored at celebratory occasions. This whole-fish grilling method, using the fish from head to tail, has long been considered an auspicious food symbolizing the idea of “seeing something through from start to finish.” It also carries the wish for a long life, much like the red sea bream itself, which can live up to 40 years and is considered long-lived among fish.
３．A brief history of Taiyaki
Taiyaki is believed to have evolved from Imagawayaki (今川焼), a round-filled cake that dates back to the Edo period. Taiyaki itself was born in the Meiji era, around 1909.
The sweet is commonly attributed to Seijiro Kobe, the founder of Naniwaya Sōhonten, a historic shop in Tokyo. Inspired by imagawayaki, he experimented with various shapes before discovering that the sea bream design sold exceptionally well. The connection to good luck helped taiyaki gain popularity among ordinary people.
Taiyaki’s fame soared nationwide in 1975 with the massive hit children’s song “Oyoge! Taiyaki-kun.” Today, taiyaki is enjoyed not only in Japan but also overseas, where it is widely recognized simply as “TAIYAKI (鯛焼き).”
４．“Natural” vs. “Farmed” Taiyaki
In Japan, taiyaki is sometimes described as “natural” (天然) or “farmed” (養殖). These terms do not refer to real fish. Instead, they are metaphors describing how the taiyaki is cooked.
■ Natural Taiyaki (One-by-one method)
The appearance of One-by-one method equipment
“Natural” taiyaki is cooked individually using a single mold, one fish at a time.
Characteristics
Thin, crisp skin with a light crunch
A generous amount of red bean paste, often filled all the way to the tail
Careful heat control, resulting in juicy, freshly cooked filling
This style emphasizes craftsmanship and is often associated with traditional shops.
■ Farmed Taiyaki (Multiple-at-once method)
The appearance of Multiple-at-once method equipment
“Farmed” taiyaki is cooked by grilling several pieces at the same time.
Characteristics
Thicker batter with a fluffy yet crisp texture
Wide variety of fillings such as custard, chocolate, or mochi
Creative styles including croissant dough, round shapes, or even non-fish designs
Modern serving styles like taiyaki ice cream, parfaits, or chilled taiyaki
This type represents innovation and the evolving possibilities of taiyaki.
５．Why is Taiyaki usually filled with chunky red bean paste?
Most taiyaki is filled with chunky red bean paste (Tsubuan: つぶあん) rather than smooth paste (Koshian: こしあん). This choice reflects a traditional Japanese approach to pairing textures and flavors.
Smooth red bean paste is delicate and silky, often paired with soft or chilled sweets such as mizuyokan (jellied red bean dessert). Chunky red bean paste, on the other hand, has a richer texture and stronger bean flavor, making it better suited to warm, hearty sweets like taiyaki, dorayaki, and kintsuba.
That said, modern wagashi culture allows for many exceptions, and some shops now offer koshian taiyaki as well.
６．The appeal of Taiyaki
Taiyaki has many charms beyond its taste:
Comforting and warm: Warm batter and sweet filling is surprisingly rare among Japanese sweets
Easy to eat: No plate or utensils needed—perfect as street food
Casual yet meaningful: A lucky symbol without formality
Everyday happiness: Ideal for a small reward, a quick snack, or a hopeful moment before an important event
When you crave a warm, filling Japanese sweet, taiyaki is one of the best choices available.
７．Famous Taiyaki shops in Tokyo
Naniwaya Sōhonten (浪花家総本店)
Founded in 1909, known for traditional one-by-one grilled taiyaki.
1-8-14 Azabujuban, Minato-ku, Tokyo 106-0045
Yanagiya (柳屋)
Over 100 years old and considered one of Tokyo’s “Three Great Taiyaki Shops.”
2-11-3 Nihonbashi Ningyocho, Chuo-ku, Tokyo 103-0013
Taiyaki Wakaba (たいやき わかば)
Established in 1953, famous for its large size and fluffy texture.
1-10 Wakaba, Shinjuku-ku, Tokyo 160-0011
Summary
Alongside Takoyaki, Taiyaki is one of Japan’s iconic street snacks that visitors should not miss. This fish-shaped treat, traditionally filled with sweet red bean paste, is warm, comforting, and easy to enjoy on the go. Beyond its delicious taste, taiyaki carries a touch of Japanese culture and good luck, making it both a delightful snack and a small symbol of happiness. Whether you try it from a traditional shop, enjoy a modern twist with custard or ice cream, or experience the white-skinned version, taiyaki offers a uniquely Japanese treat that’s perfect for anyone exploring local flavors.
The appearance of high-end sushi restaurant interior
High-end sushi is often compared to the Japanese tea ceremony, emphasizing silence, precision, and restraint. However, sushi is not tea ceremony. While refined movements and quiet concentration are essential, conversation—used thoughtfully—is an indispensable part of the sushi experience, especially for international guests and beginners. Observing the sushi chef’s movements, called shosa (所作) povides insight into quality, intention, and hospitality. These gestures are subtle, often unspoken, yet deeply meaningful.
For diners who lack deep knowledge of fish, seasonality, or Japanese culinary culture, serving sushi without explanation can create distance rather than appreciation. Many foreign guests do not recognize fish names, understand why certain ingredients appear only briefly each year, or notice how subtle changes in preparation affect flavor. Explaining what the fish is, why it is in season, and what the chef intends the guest to experience transforms the meal into a cultural encounter.
The chef’s hands tell the story of the sushi. Notice how rice is gently molded with minimal pressure, preserving air and texture. This careful shaping is evident when the sushi is placed on the plate: it often sinks slightly under its own weight, a subtle sign that the rice has been lightly pressed while maintaining internal air pockets, resulting in a delicate, melt-in-the-mouth texture. Fish is slid onto the shari rather than pressed, and pieces are placed at precise angles so they can be eaten naturally according to the guest’s dominant hand. Even wiping the knife after each cut prevents flavors from mixing. Some preparations, like kuruma-ebi (Japanese tiger prawn or Kuruma prawn), are intentionally cut into two pieces—not for cost reasons, but because the prawn is often too large to eat in one bite. This is done as a thoughtful consideration, particularly for women or guests who may find a full piece difficult to handle, ensuring comfort and ease when eating.
By contrast, seasoned diners who visit sushi restaurants weekly and intuitively understand seasonal transitions may prefer silence. For them, minimal conversation allows full concentration on texture, temperature, and balance. In such cases, shared knowledge replaces words.
True mastery lies in discernment. A great sushi chef knows when to speak and when not to, adjusting the level of explanation to each guest. This sensitivity is part of professional practice, no less important than knife skills or shari preparation.
However, it is important to recognize that in sushi restaurants in general, it is unreasonable to expect the chef to have the language skills of a professional interpreter, and they cannot dedicate extensive time to explaining every detail. As a result, the quiet atmosphere—though sometimes regrettable for those seeking understanding—remains a natural and integral aspect of authentic Edomae sushi dining
In the context of gastronomy tourism, conversation is not a distraction from authenticity; it is a bridge. Thoughtful dialogue allows international guests to understand, respect, and fully enjoy sushi as a living culinary culture, not a silent ritual.
In traditional Japanese sushi restaurants, caviar sushi is rarely used.
In cities like Dubai, New York, and Paris, sushi topped with luxury ingredients such as caviar is often showcased in an eye-catching way, and it’s not unusual to see mentaiko adding a pop of color at conveyor-belt sushi chains. However, in traditional Japanese sushi restaurants, such toppings are rarely used. Five overlapping factors explain this: cultural distance, preparation techniques, flavor structure, flavor harmony, and the pride of the craftsman.
Mentaiko tastes best when eaten with cooked rice.
Caviar is part of Russian culinary culture, while mentaiko originates in Korea; neither is traditionally associated with Japanese cuisine. This cultural gap is at the heart of why sushi chefs find them difficult to work with as nigiri toppings. In fact, chefs generally avoid unfamiliar ingredients, so it’s only natural that they wouldn’t use ingredients that don’t come from their own country.
Next, sushi restaurants have a meticulous system for preparing fish into nigiri, with chefs developing the flavor throughout the entire process. For example, when preparing salmon roe (ikura), the individual steps include separating the roe sacs, rinsing them in saltwater, and adjusting the shape and firmness of each grain. Even with sea urchin, the chef’s judgment is crucial for managing freshness and moisture. In contrast, caviar and mentaiko are already processed, with their flavor set through salting, leaving little room for chefs to enhance them further. Because these ingredients don’t involve the hands-on preparation unique to sushi, they are rarely featured as the centerpiece of nigiri.
From a flavor-structure perspective, they also don’t pair well with nigiri. Nigiri relies on a balance of flavors in the mouth: the acidity of the vinegared rice, the umami of the seafood, and the clean finish from soy sauce and wasabi. The strong saltiness of caviar or the spicy kick of mentaiko can easily overpower the rice and fish, diminishing the enjoyment of their aroma and lingering aftertaste.
Furthermore, achieving harmony with the Japanese flavors—nori, wasabi, and soy sauce—that define sushi is challenging. Caviar and mentaiko have flavors that are already very strong and complete, leaving little room for the “umami-enhancing” effect of Japanese seasonings to shine. In other words, their dominant flavors take over before the umami can come through, preventing the fish’s natural umami and overall balance from being fully appreciated. While such toppings might work in fusion sushi, they are difficult to integrate into the mainstream of traditional nigiri.
Finally, the most essential aspect of a sushi chef’s work starts with discerning quality at the market and continues through the preparation process that brings out the fish’s full potential. In a world where flavor is believed to be perfected through human touch, finished products like caviar and mentaiko fall outside the scope of a sushi restaurant’s craft. Except for a very small number of chefs who use them purely as social media–friendly props, they are rarely used. Against this backdrop, five overlapping perspectives—cultural context, preparation techniques, flavor structure, harmony of flavors, and the pride of the artisan—help explain why these ingredients have not become mainstream in traditional nigiri.
Many Westerners find black nori spooky, leading some to avoid onigiri (rice balls) and norimaki (rolled sushi). Yet it’s an indispensable ingredient in Japanese sushi, with sushi chefs even saying they “eat the aroma of nori.” Its appeal isn’t merely about flavor—it’s supported by scientifically backed aromatic compounds. Let’s take a closer look at how nori’s aroma directly contributes to the deliciousness of sushi.
One of the main components of nori’s aroma is dimethyl sulfide (DMS), a volatile sulfur compound. DMS contributes to nori’s distinctive “ocean aroma” and is detectable at very low concentrations, making nori’s flavor highly memorable. Additionally, nori contains aldehydes, ketones, alcohols, esters, and decomposition products derived from fatty acids. These elements create the nori’s complex fragrance.
Nori also contains umami components like free amino acids, taurine, and inosinic acid. The combination of aroma and taste ensures that the flavor and deliciousness of nori are richly perceived the moment it’s eaten. DMS, in particular, while not directly contributing sweetness or umami, triggers the brain to associate its “sea aroma” with freshness and rich flavor. This creates an effect where simply smelling it anticipates deliciousness. The aroma that gently rises immediately after cutting or upon entering the mouth naturally conveys the seaweed’s inherent flavor, drawing out a deeper taste experience.
Furthermore, there is evidence suggesting an interaction between aroma and umami. The umami components in nori, such as free amino acids (like glutamic acid) and inosinic acid, may work synergistically with volatile compounds to enhance how the flavor is perceived. While this relationship hasn’t been fully quantified, research in sensory science underscores the close connection between smell and taste, highlighting the importance of aroma in the overall sushi experience.
Sushi chefs leverage this property, employing techniques to maximize aroma through nori selection, timing of toasting or searing, and careful storage management. Furthermore, they cut or roll the nori immediately before serving to diffuse its aroma into the air, directly appealing to the customer’s sense of smell. Thus, the aroma of nori is not merely a flavor; it is a crucial element that determines the overall quality of sushi, resulting from the combination of its chemical properties and the chef’s skill.
