– The main components of your sushi will determine its overall shelf life and storage instructions. In general, the U.S. Food and Drug Administration (FDA) advises that leftovers should not be kept at room temperature for more than 2 hours, and for no more than 1 hour if you’re eating outdoors when the temperature is above 90 degrees Fahrenheit (32 degrees Celsius) ( 2 ).
This recommendation applies to both raw and cooked sushi, such as sashimi, tempura, and California rolls. Raw fish and shellfish can be refrigerated for 1–2 days, but 3–4 days when cooked, according to the U.S. Department of Agriculture (USDA) guidelines for storing sushi ( 3 ). The objective is to keep sushi out of the “danger zone” of 40–140 o F (4–60 o C) to prevent rapid bacterial growth, which raises the risk of foodborne illness ( 3 ).
Summary Raw sushi can be stored at room temperature for up to two hours and in the refrigerator for one to two days, whereas cooked sushi can be stored in the refrigerator for three to four days.
What happens when sushi is reheated?
How does sushi that has been reheated in the microwave taste? Rice: becomes softer and slightly more moist. Raw fish has a better flavor and texture than chilled fish. If you overheat fish, it will become cooked. Nori does not improve when heated; discard. 
Should sushi be microwaved?
After learning this trick, you will never again settle for refrigerated sushi past its prime. You can revive these rolls with a microwave so well that you’ll almost expect the fish to fall from your chopsticks. There are few meals more disappointing than a row of limp, cold sushi rolls purchased from a store.
- The rice is frequently stale – you didn’t even realize rice could become stale – and the fish tastes off, making each bite a gamble.
- You are concerned about your stomach as well as your taste buds.
- Whatever went wrong with your sushi, a SoraNews24 reporter claims they have the solution.
- Simply microwave your sushi and observe as the heat waves revitalize your rolls.
The nigiri will indeed cook. But this is precisely the point: cooking the raw delicacy may seem like a sushi sin, but refrigerated and stale nigiri is essentially ruined. By cooking the raw slices with rice in the microwave, you’ll have restaurant-quality rolls in a matter of seconds.
- The con requires no skill or culinary dexterity.
- Meg, a reporter, heated her sushi at 500 watts for thirty seconds.
- And voila.
- She anticipated moist rice, tender rolls, and the ideal temperature.
- She was particularly impressed by the rolls’ supple texture, as if they had been shaped by a master sushi chef just moments ago.
The method may appear unconventional, but it is certainly worth a try. You can find sushi that can compete with the 50 best sushi restaurants in the United States for a significantly lower price. View slideshow for more sushi expertise 16 Confusing Terms for Sushi, Deciphered What is the Proper Way to Consume Sushi? New Sushi-Delivery Robots in Japan Are Efficient and Adorable