1. Sushi is usually kept in a closed plastic box. Or wrap it in plastic wrap.
The purpose is to "moisturize". ? Because sushi is made of rice balls, rice tastes bad when it is dry.
2. Rice is most prone to bacterial reproduction in a temperature environment of 30-40 degrees.
Most sushi is made of raw fish and raw vegetables, and it is not easy to keep it in an overheated environment.
Therefore, it should be kept at low temperature.
3. Sushi can be stored for a short time at 5- 10 degree.
Sushi can be preserved for a long time in an environment below 5 degrees.
However, sushi is usually cooked and eaten at that time, which is the best.
Even if it is refrigerated in the refrigerator, the freshness will still drop after a day or two.
6. In order to preserve sushi for a long time, you can put it in the "freezer". When eating, take it to the "cold room" and thaw it slowly.
It won't go bad if it is kept for two weeks.
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To sum up, if sushi is to be stored until the next day, it needs to be placed in a sealed container and stored in a refrigerator at 5- 10 degree. Only in this way can the sushi not deteriorate, and the "humidity" and "freshness" of the sushi can be maintained.