– Sushi is a popular Japanese dish that is typically made with raw and cooked seafood, vegetables, rice seasoned with vinegar, and dried seaweed ( nori ). It is more likely to contain parasites and bacteria and must be stored properly to reduce the risk of foodborne illness.
Is it safe to consume leftover raw sushi?
How to Determine Whether Your Sushi Has Gone Bad – Eunice Choi Let’s begin with sushi purchased from a restaurant or grocery store. If the sushi contains raw fish, it is acceptable to take some leftovers home and refrigerate them for up to 24 hours. The flavor and texture of sushi may change after 24 hours (e.g., softer sashimi, limp seaweed paper, harder rice), but there should be no harm in consuming it.
- Sushi with a raw component, such as spicy tuna rolls and sashimi, is susceptible to bacterial growth if left unrefrigerated (which is basically just slices of raw fish).
- Imagine you have a box of leftover sushi in your refrigerator, and after calculating the time, you realize it will soon be hour 25.
What do you do? Alex Vu Initially, observe the color and aroma. If it smells fishy or even slightly off, don’t take the chance and throw it away. If the color of the sushi appears dull or different from what you recall it being when the employee brought it, it is best to discard it. 
How long is sushi shelf-stable in the refrigerator?
How long can sushi be kept in the refrigerator? – There are various types of sushi, not all of which contain raw seafood. According to the experts, the answer to the question at hand is consistent across the board. All types of sushi can be stored for up to 24 hours in the refrigerator.
According to Jue, sushi containing raw seafood that has been refrigerated should be consumed within 12 to 24 hours, as recommended by Japanese supermarkets. The same holds true for sushi purchased in the United States, whether from a supermarket or a restaurant. The relatively short freshness window for sushi made with raw fish is not difficult to comprehend (anyone who has eaten spoiled seafood knows how the story ends), but you may wonder why the same is true for vegetarian sushi and rolls containing cooked seafood.
As you may have guessed, sushi containing cooked seafood or only vegetables (such as a tempura shrimp roll or a simple avocado roll) is safe to consume after 24 hours and can be stored for three to four days or up to a week in the refrigerator, respectively.
How should sushi be stored to extend its shelf life? – Wrap the sushi tightly in plastic wrap and place it in an airtight container in the refrigerator before serving. Wrap sashimi tightly in plastic wrap and store in an airtight container in the refrigerator.
Storage conditions for sushi and sashimi are crucial. When preparing sushi at home, you must begin with the freshest sushi-grade fish available, which is not typically found in grocery stores. The fish must be frozen for at least 24 hours to eliminate any remaining parasites. Once the fish has been properly thawed, it should be consumed raw within twenty-four hours or the risk of bacteria will increase significantly.
Also, ensure that a very strict 4-hour rule is enforced once the fish has reached room temperature (if it sits out for 4 hours, you must then cook the fish or toss it out). A few advantages of proper food storage are eating healthier, reducing food costs, and helping the environment by preventing food waste.