How Long Does Sushi Stay Good In The Fridge?
– 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.
Can sushi leftovers be preserved?
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. 
Is it harmful to consume stale sushi?
Due to the raw nature of sushi and sashimi, bacteria may grow and become dangerous if left out. Therefore, regardless of any dates, sushi and sashimi should NOT be consumed after 24 hours. Some types of sushi are prepared with cooked fish, such as the California roll, which contains cooked crab meat, the Philadelphia roll, which contains smoked salmon, and the tempura shrimp roll, which contains deep-fried shrimp.