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.
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.
Today, we are happy to announce that SushiUniversity has just started up a sushiblog !