Can all types of fish be used for sushi?

Basically all types of fish can be used for sushi.

However not all types of fish are suitable for being used for sushi. There are many types of fish which do have a high enough quality for sushi. For fish to approved for sushi the fish has to meet specific requirements. Fish used for sushi have the finest quality and the reason that is that fish is eaten raw.

Most people know that the tuna is a threatened fish species.
It is partly true. The tuna used for sushi is threatened. There is plenty of tuna in the sea which just cannot be used for sushi because the quality is not high enough.

It is the fishmongers who know if the fish is suitable for sushi. This is because they know where they bought the fish.

On the Sushi course for beginners you learn more about the fish used for sushi.

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Zoë has held sushi courses and cooking classes for A. P. Moller – Maersk, Hugo Boss Nordic, Novo Nordisk, Novartis, Velux, Gorrissen Federspiel, Beierholm revision, Elbek & Vejrup and many more.

How the Japanese fish monger keeps fish in Tokyo

The Japanese have some strict rules for handling fish. On the cooking class I teach I follow the Japanese rules which are more strictly than the Danish rules. I do this for the health of the students.

It does matter how fish are stored.
All fish species have their own bacteria and to prevent the different bacteria from being transferred to each other it is best to keep fish separate.

In Japan, it is not enough that the different fish are kept separate. They are also wrapped in tightly closed films so that the fish do not dry out.
It is also important keep the fish cold all the time unless they are used in the preparation of sushi.

At Sushi course for beginners I talk more about handling fish for sushi.

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Zoë has held sushi courses and cooking classes for A. P. Moller – Maersk, Hugo Boss Nordic, Novo Nordisk, Novartis, Velux, Gorrissen Federspiel, Beierholm revision, Elbek & Vejrup and many more.