How long can Sushi last if stored in a refrigerator?

Sushi is a dish that is different from other dishes in Japanese cuisine. It is a dish where the shelf life is very short.

Sushi should be eaten the same day it was purchased and there are several reasons.

Raw fish included in sushi together have shelf life as beef Tatar. Since there will be more bacteria in the food the next day.

Avocado is a raw material that quickly turns brown and dull. Most people know what half an avocado looks like the next day if it is not stored in the “right” way.

The individual rice grains also change in taste. The next day, the individual rice grains will be harder to chew.

At the Sushi course for beginners you will learn how to make tasty sushi that you can enjoy for lunch and dinner.

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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.

Sushi is the easiest way to get more vegetables eaten!

Sushi chef & sake sommerlier Zoë Escher

Did you know that sushi can be one of the easiest ways to eat more vegetables without getting tired of your food?

One of the main ingredients in sushi is seaweed. This type of seaweed is cultivated on the seabed in countries such as Japan, Korea, and China, in much the same way as we grow oats and wheat here at home. The flavor varies depending on where it is grown, and in Japan it is typically harvested in the autumn.

After harvesting, the seaweed goes through a thorough process, it is washed, cleaned, dried, pressed, and cut to the right size. In Japan, you can find both everyday seaweed and exclusive quality seaweed for gourmet sushi.

Sushi seaweed is actually the vegetable in the world that contains the most vitamins and minerals. You therefore don’t need to eat much before covering a large part of your body’s needs.

Would you like to learn how to make delicious sushi at home in your own kitchen?

At our Sushi course for beginners, you will be guided step by step through all the techniques.

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

Can fish from the supermarket be used for sushi?

The short answer is no, you should not use frozen fish from the supermarket for sushi. There are several good reasons for this.

  1. You don’t know the quality

    For sushi, the fish must be of the absolute highest quality, because it is eaten raw. When you buy a frozen pack of fish at the supermarket, you cannot tell what quality the fish had before it was frozen.
  2. You don’t know where the fish was caught

    The marine environment has a major impact on the quality of the fish. Polluted waters can affect both taste and safety. On most frozen packages, it is not clearly stated under what conditions the fish was caught or lived.
  3. You don’t know when the fish was caught

    When making sushi, freshness is crucial. But on frozen packages, you rarely see the catch date – only an expiration date. That means you lose important information about the fish’s freshness.

Making sushi requires the right ingredients especially when it comes to fish. It can be difficult to assess on your own which fish are fresh enough, where they come from, and whether they are suitable for sushi.

That’s why we recommend learning it in a course, where you gain both knowledge and practical skills.

In our Sushi course for beginners, you’ll learn, among other things, how to choose the right fish and how to safely make delicious sushi at home.

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

If a fish is caught in the sea near you can it be used for sushi?


No, not necessarily even if it is freshly caught.

First of all, fish for sushi has a very special quality. You can not necessarily see that quality with your eyes. There are usually experts who have the knowledge and experience to be able to see that.

Also it is difficult to tell where the fish is coming from.

There are some fish that swim several kilometers a day. There are also fish that stay in the local area throughout their lives. There are areas in the world where fish are of better quality than elsewhere. Unfortunately, it also requires that you have an in-depth knowledge of it.

About Sushi course for beginners I talk more, how to make sure you get bought of a quality so that it is suitable to be used for sushi.

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

How healthy is seaweed for sushi?

Seaweed for sushi is a very healthy vegetable. In the world, seaweed is the vegetable that contains most vitamins and minerals.

The countries that produces the largest amount of seaweed for sushi are China, Korea and Japan. You can compare seaweed for sushi to crops like wheat or oats. The difference is that seaweed is a vegetable which ia grown on the sea bottom.

Seaweed produced in Japan, China and Korea has difference taste. This is because there are several different type of seaweed used for sushi.

In general, seaweed for sushi is a vegetable that is essential in Japanese cuisine.

Read more about Sushi course for beginners

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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.

What types of vegetables do sushi chefs use in Tokyo when making sushi rolls?

Japanese sushi chefs in Tokyo use different kinds of vegetables when making sushi rolls.

In Japan, local vegetables are often used when making sushi rolls.
There are some vegetables that are more popular than others. They are part of Japanese culture and have a very special meaning for the people.

Shiitake mushrooms and pickled Japanese plums are often used in sushi rolls.

Shiitake mushrooms are marinated before being used for sushi. In sushi restaurants in Tokyo, they are used in large sushi rolls also called futomaki.

Pickled plums with a slightly salty taste are a delicacy in Japan. It adds unique flavors and aromas to food. Pickled plums are also used in sushi rolls. In sushi restaurants in Tokyo, they are used in the smallest sushi roll also called hosomaki.

Read more about Sushi course for beginners

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

Which countries produce sushi rice?

There are several countries in the world that produce sushi rice. Japan of course and China, Korea and the United States do also produce sushi rice.

There is quite a big difference between the sushi rice produced in the different countries. The rice grain itself can vary in size and, of course, it has an influence on cooking the rice.

However, I have most experience with using sushi rice which is either produced in Japan or also in the USA. Since these types of sushi rice varieties I learned to cook to perfection when I was trained for Japanese sushi chef.

Read more about Sushi course for beginners

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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 many different kinds of tuna do sushi restaurants have in Japan?


In Japan, sushi restaurants have several different kinds of tuna on the menu. In Japan, fish is the main source of protein and fish oil. During a week, the Japanese eat a lot of fish. They eat as much fish as meat is eaten in Europe.

Like so many others, the Japanese are happy to be able to choose from several different fish. One of the fish that stands out is the tuna. The meat on the tuna tastes very different depending on where it sits on the fish. Tuna from the stomach is called toro, it is fat light pink tuna and, is an exclusive eat.
Low-fat tuna which is bright red in color is called Akami, it sits at the spine. That piece is used for sashimi and nigiri pieces. That way, the meat pieces can be prepared and eaten in different ways.

The reason why sushi restaurants in Japan have several different pieces of tuna to choose from is that most of the tuna in the world lands at the Tsukiji fish market in Tokyo, which is the largest in the world.

Read more about Sushi course for beginners

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

What is the purpose of pickled ginger for sushi?


Most people enjoy pickled ginger when eating sushi. It is a regular accompaniment on the sushi plate.

In Japan, ginger is a staple in the Japanese kitchen, much like salt and pepper in Danish cuisine.

Thousands of years ago, the Japanese began pickling ginger. At that time, refrigerators did not exist, and pickling was the best way to preserve vitamins and extend shelf life.

The purpose of pickled ginger with sushi is to cleanse the palate between pieces. This happens naturally when eating ginger. Its strong and spicy flavor stimulates the senses and leaves the mouth ready to enjoy the next piece of sushi.

However, it is not a must to eat ginger between sushi pieces.

Read more about Sushi course for beginners

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

Do seaweed for sushi taste different?


Yes, there is a difference in the taste of seaweed for sushi.
There are 3 countries that produce seaweed for sushi and that is Japan, Korea and China. Within sushi seaweed, there are several different types it affects the taste, the structure of the sushi seaweed and the way the seaweed behaves when it is used for sushi.

I have tasted seaweed for sushi from Japan, Korea and China and it tastes different.

Some seaweed sheets taste part of the sea, so it may seem surprising if you are not used to it.
Some seaweed sheets are completely neutral in taste it has an advantage over sushi because it does not affect the taste of the sushi pieces.
Some seaweed can be a little rubbery in consistency when sushi rolls are made and when eating the pieces. It gives a different feeling when biting through the sheet.

Seaweed is very healthy, and you should finally eat loose of it when you have the opportunity.

Read more about Sushi course for beginners

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