Some people say that “Sea urchin in a wooden box (called ‘hako-uni’ or ‘ori-uni’ or ‘boxed sea urchin’) has a bitter medicine taste”. When a sea urchin loses its freshness, it starts to disintegrate so an additive called alum is used to maintain its shape. If you’ve ever tried a sea urchin that tasted bitter*, this may be the reason.
What is saltwater sea urchin?
Sea urchin soaked in brine without using alum (called ‘ensui-uni’ or ‘saltwater sea urchin’) is also commonly found. There is also a new technology that doesn’t use alum. In this method nitrogen water (water from which oxygen has been removed and then nitrogen dissolved) is used when sealing. The effect of replacing oxygen with nitrogen is inhibited oxidation, maintaining the freshness of the sea urchin.
*An “off flavor” that takes away from the primary good tastes.
About 200 years ago (around 1810-1830), Yohei Hanaya opened up the oldest nigiri sushi restaurant in Japan. It is said that this was the beginning of edomaesushi. As expected, none of the restaurants remain to this day, no matter how popular they were in those days. However, if relating to those lasting more than a century, as many as 10 still exist in Tokyo. It is such a surprise and many respect that they’ve managed to survive, still keeping their business running now. We will introduce those old restaurants in the order of its establishment.
KUDANSHITA SUSHIMASA
First started as a stall in 1861 at Nihonbashi area, relocated to Kudanbashi and then opened the restaurant in 1923. The beauty of wooden architect managed to survive the war and it has a 100-year history. They carefully prepare sushi ingredients with appropriate amount of vinegar and salt. Take Kohada for instance, they adjust the amount of salt depending on the thickness of fish fillet, fat content, temperature and humidity of the air. Check the glossiness of the vinegared kohada fish, and decide the best timing to serve. Enjoy superb sushi prepared with the traditional recipe passed on for generations.
JANOMEZUSHI HONTEN Established in 1865
BENTENMIYAKOZUSHI Established in 1866
YAHATAZUSHI Established in 1868
During the end of Edo period, many of samurai lords who had served for Tokugawa government lost their jobs. Many of them disguised themselves as dango rice dumpling seller. The first owner of Yahata-zushi was one of them, started the business as dango rice dumpling stall and then the second generation owner began serving sushi. The fourth and fifth chef now run the kitchen behind the counter. The fourth chef has a 62-year experience and he is the respected patriarch chef in Tokyo and serves traditionalEdomae-style sushi with careful preparation. The fifth chef adheres to basic principle of sushi making while embarking on new-style. He uses sun-dried salt produced in the French Basque Country for well-matured akami red fish such as tuna, and sea urchin from Hokkaido. Other must-eat ingredients are, the highest quality tuna from long-time partner vendor at Tsukiji market and rare tuna caught at the sea near Miyakejima island and matured for good five days.
OTUNASUSHI Established in 1875
YOSHINOSUSHI HONTEN
Opened in 1879, Yoshino sushi has served excellent Edomae-style sushi. Now the fifth-generation owner runs the restaurant. The second-generation owner first started using Toro, fatty tuna meat while most of the chef discarded it. That was because food freezing was not in widespread use at that time and fatty content of fish went bad quickly. Soon Toro was quickly raved by their regular customers as delicious treat. First it was called “abu” as it came from “abura” meaning fat in Japanese, but it didn’t sound as good as it tastes, so they changed it to “toro” meaning mild and tasty. They will feed you interesting stories to go along with sushi dish. One of them is that they had never considered Gunkan roll of ikura and uni sea urchin as sushi since Gunkan never requires hand rolling techniques as other hand roll sushi does. They use only salt and vinegar to make sushi rice not a slight use of sugar and mirin. And then they carefully prepare fish ingredients to go with vinegared rice. Enjoy delicious sushi dish however you like in a casual atmosphere.
It is often said that the taste, texture and fragrance of sushi should be enjoyed. For example, the striking scent with traces of acidity that gives you a sense of the iron content in tuna. Abalone has a salty fragrance with an abundant seaweed smell. Don’t let perfume get in the way of your enjoyment of the joy of smoked straw scent that penetrates your nose the moment when you put dried bonito in your mouth.
We really don’t understand but there is a regulation, that taking photos is prohibited at a seafood wholesale market. And its visiting hours have recently changed from 10am（11am） started from 15 June, 2018.
Even though cameras are forbidden as a rule, if you ask intermediate wholesalers for permission, they will gladly let you take pictures. It doesn’t seem quite right to me to have such a rule, as if it were an art museum.
We would like to thank all the intermediate wholesalers who willingly accepted me for shootings at their shops. We are praying you will carry on more thriving business.
More and more visitors from overseas are making a point of timing trips to Tokyo during the cherry blossom season. Guidebook in their hands, they head to Meguro River, Ueno Park, Sumida River, Chidorigafuchi Park, or another popular spot. It goes without saying that the blossoms are beautiful in all of these locations.
However, to be frank, there are so many people sometimes it’s hard to tell if you’re there to see blossoms or to see crowds. If you’re visiting Japan and you’d like to really experience cherry blossoms, we recommend Shakujii River.
Around 1000 trees bloom on both sides of the river and there are very few people, making it perfect for enjoying cherry blossoms on a stroll. There are actually more cherry blossoms here than on Meguro River or at Ueno Park.
After enjoying the scenery, stop by Makitazushi, established in 1972. Entering this flagship shop of Nakaitabashi is like stepping back in time to the Showa era (1926-1989). Make sure to splurge and order the special sushi selection for JPY 3024.
Location : A few minutes walk from Nakaitabashi Station on the Tobu Tojo Line
This refers to Norimaki, originating from Kanpyo maki. Now the core of Norimaki may be made from a number of different ingredients, but the most important part of Norimaki is not the ingredients inside, but the Nori (seaweed). There is a tendency for foreigners to dislike black-colored food, but Nori has a fresh sea scent, and a high amino acid and umami content, so it’s worth a second look.
The Nori used in Norimaki and Gunkan-maki is essential to Edomae sushi. The Nori used in sushi absolutely must have good fragrance and crispiness, melt in your mouth and have the right coloring. The combination of selecting the quality and source site of Nori and using different Nori according to the sushi topping is one of the things sushi chefs are particular about. During the Edo era, the sea near the area that is now Omori in Tokyo was the largest production site of Nori. However, with the reclaiming of Tokyo Bay, Nori can no longer be caught in Omori. Now, places like the Ariake Sea, Seto Inland Sea and Tokyo Bay are famous for producing high-quality Nori.
*Japanese terms will be italicized on sushi ingredients page.
<Norimaki－Seaweed roll>
Anakyu maki－Gizzard shad and Cucumber roll
Himokyu maki－Mantle of ark shell and Cucumber roll
kanpyo maki－Sweet-simmered kanpyo (dried gourd strip) roll
There are only high rank toppings such as rich tasting sea urchin (Uni), salmon roe (Ikura) and herring roe (Kazunoko). All different from other sushi toppings when it comes to a texture and flavor. A lot of them have become widespread ever since the technique of gunkan style sushi was established after the war. There are also sushi toppings made from other than fish and shellfish.
*Japanese terms will be italicized on sushi ingredients page.
Crustaceans like shrimp and crab are sushi toppings overflowing with their distinctive sweetness.
Except for Kuruma ebi, Ebi and Kani (shrimp and crab) were introduced as sushi toppings after WWII. The sweetness of shrimp is stronger when eaten raw. There is still a sweetness remaining in boiled shrimp, but it’s weaker. Instead, the umami gets stronger and the texture is also completely different than when served raw. When boiled the fiber is more apparent and it can be bitten clear through. Kuruma ebi is one of the traditional sushi toppings of the Edo period.
This painting depicts “Matsu no Sushi,” which was famous as the most extravagant sushi in Edo. A child is begging for shrimp sushi.
Crab wasn’t originally an Edomae sushi topping. However, there is a special sweetness that oozes from the gaps in the fibrous body.
*Japanese terms will be italicized on sushi ingredients page.
<Ebi/Kani－Prawn/Crab>
Aburagani－Blue king crab (Paralithodes platypus (Brandi,1850))
Shellfish has been a traditional sushi topping started off with the origin of Edomae sushi. Its distinctive texture is fascinating, but the thing is, all kinds are expensive. As a sushi topping, it is placed between rich and light in flavor, and functions as a palate refresher.
The texture, flavor and fragrance differ greatly depending on the type and most people either love or hate Shellfish toppings. They include a large volume of umami components, such as Succinic acid. Kai is another topping type that has been eaten as Nigiri sushi since it was invented. Hamaguri is essentially a type of shellfish, but when in the Nigiri sushi world, it is generally lightly seared and then marinated in broth, so it is classified as Nimono.
*Japanese terms will be italicized on sushi ingredients page.
The Japanese love this strong umami coming out of its creepy features. These are sushi toppings that show their presence in your mouth.
There are over 450 types of Ika (squid) in the world and over 100 types just in the seawaters around Japan. Ika is essential to Japanese cuisine and is found in many recipes for home cooking. It is a representative of ingredients for common people that is both affordable and delicious. There are also many different types of Ika used as sushi toppings, and certain Ika are used during certain seasons, each with a unique flavor.
Tako (octopus) is a popular sushi topping at every sushi restaurant. However, preparing Tako from its raw state is very labor intensive. Some restaurants boil it, while others use “Sakura-ni.” Elaborate efforts are made at the restaurant in order to prepare a topping that can be bitten through and emit a delicious fragrance. Needless to say, when prepared raw, it is thoroughly kneaded by hand. It may be struck with the crest or wooden pestle of a kitchen knife, or boiled with roasted green tea, incorporating techniques from Kansai dishes. When Tako is prepared as Sakura-ni*, it is classified as Nimono.
*”Sakura-ni” refers to stewing octopus in sake, mirin and soy sauce to soften it, turning it into a shape that resembles cherry blossom (sakura) petals.
Japanese terms will be italicized on sushi ingredients page.
Hikarimono (Silver-skinned fish) includes horse mackerel, mackerel, sardines, sillago, and gizzard shad, generally referred to as blue-backed fish. Hikarimono all have high-fat content. It is approximately 7% in gizzard shad and horse mackerel. It is about 16% in mackerel. The taste is heavy. Many of the fish in this category lose their freshness quickly, so the preparations differ greatly from restaurant to restaurant. They say that you can tell how well a restaurant is doing by which Hikarimono they serve. This may be why many restaurants make sure to work hard on their Hikarimono.
Tachiuo really does look like a sword from the outside, so it seems like it should be classified as Hikarimono, but it’s actually Shiromi. In the sushi restaurant sector, Hikarimono refers to sushi toppings for which Sujime is used in the preparations. Furthermore, there are chefs who classify Shima aji as Hikarimono when the silver skin is left on, and Shiromi when the skin is removed. There are many people finding it hard to eat but it is actually healthy and rich in nutritive value.
*Japanese terms will be italicized on sushi ingredients page.
Because shiromi has few peculiarities, it is an ingredient that can be easily arranged in a variety of cooking methods, flavors, and combinations with ingredients.
The first item recommended to taste is white-flesh fish. Because of its subtle flavor, it doesn’t influence the following topping. Serving it for the very first piece of sushi is a standard move. However, absolute umami in the lightness can be taken as the details Japanese love and no other sushi toppings can offer.
Shiromi refers to white-colored fish meat. The fat content in Shiromi is generally low at about 1.2% in flounder and 4.7% in sea bream. Almost all white fish have a subtle and elegant taste. Furthermore, the rigor mortis takes over slowly and lasts for a long time, so it maintains the crunchy texture longer. Unlike Akami, the Shiromi fish don’t really migrate. You can call yourself a sushi expert if you’re able to recognize which fish it is just by looking at the cut.
Contrary to appearance, Salmon is classified as Shiromi. The salmon is originally grey, and the pink color comes from the pigments of the shrimp and crab on which it preys. We also think that Buri and Shima aji meat looks more beige than white. To be more specific, these are classified as Iromono, but there are relatively few chefs who actually know this term so we will refer to them as Shiromi. Once you’re able to speak knowledgeably on Shiromi, you’ll be a true Sushi Foodie.
What you should keep in mind is that most Shiromi fish used at sushi restaurants is sold as live fish. The broker implements Ikejime according to the instructions of the purchasing shop and then it is delivered. Basically, the chef calculates backward from the time he will make the sushi, aiming to maximize the umami. Furthermore, the price is at least 50% higher, considering the cost to transport from the fishing port to Toyosu Market, etc. This is one of the reasons Shiromi is so expensive at sushi restaurants.
Of course, only white fish that can be used for nigiri sushi is listed. Many varieties of Fugu exist, but with the exception of Torafugu (Japanese puffer fish), they are mainly used in conveyor belt sushi.
*Japanese terms will be italicized on sushi ingredients page. Parentheses after the English name indicate the scientific name.
Akami generally refers to red-colored meat like beef and fish meat. The typical Akami fish are tuna and bonito. Its fatty and rich taste gives you satisfaction like “This is the sushi”. The meat gets its red color from the high hemoglobin and myoglobin content specific to migratory fish. At a sushi restaurant, when you order Akami, you will be served tuna. The word Akami exists for tuna.
*Japanese terms will be italicized on sushi ingredients page.
What does sea urchin sushi taste like?! 
Today, we are happy to announce that SushiUniversity has just started up a sushiblog !