Can You Microwave Sushi? (Answer Explained)

 “Can you microwave sushi” is a common question after all, when you go to a sushi restaurant, most of the time you come home with leftovers that need to be eaten within a couple of days.

You can microwave sushi to heat it up. However, you should be careful to include a moisture source and not heat it for too long to avoid drying the sushi out and overcooking it.

This article will go over some of the most common questions regarding saving and reheating sushi. It will also fully answer the question, “can you heat up sushi in the microwave?”

How Long Does Cold Sushi Last?

 One of the most common questions that you’ll hear when it comes to sushi is, “how long does cold sushi last?” After all, the last thing you want is for your sushi run to become a run to the hospital with food poisoning.

The length of time that cold sushi lasts depends on whether or not the ingredients in the sushi are cooked. 

If the sushi contains raw fish, it can only be kept at room temperature for about two hours before you should consider throwing it away. The same goes for sushi that contains cooked meats such as eel or crab, they should also be kept at room temperature for up to two hours.

The difference between the two is apparent when it comes to refrigerating your sushi. When you are refrigerating sushi with raw fish or shellfish, you should only refrigerate it for 1-2 days before tossing it. With cooked sushi, it is generally safe to refrigerate it for 3-4 days.

When storing sushi, the most important thing is to keep it out of the “danger zone.” This zone is temperatures from 40-140 degrees Fahrenheit (4-60 degrees Celsius) and is the range of temperatures at which rapid bacterial growth occurs which can result in food poisoning if consumed.

Can You Heat Up Sushi in the Microwave?

Yes, you can heat up sushi in the microwave however, it is not considered the best method. When you microwave sushi, you are not able to control the temperature as precisely. This makes it so that you are likely to overheat and overcook the sushi if you’re not careful.

However, if done properly, heating sushi up in the microwave can be done and can have good results. You just need to be careful to not heat the sushi too much. 

What Happens If I Microwave Sushi?

If you microwave sushi, there is a possibility that the sushi will dry out or become overcooked. This is because in the microwave there is no extra source of humidity. This means that as the food is reheating, the moisture from the rice is slowly leaving it. This can make the rice hard and unappetizing.

Another risk of microwaving sushi is that it will become overcooked. This can result in chewy rice or rice that falls apart easily.

How Long Does It Take to Microwave Sushi?

On average, you’ll want to microwave sushi for no more than 30 seconds. Microwaving your sushi for no more than 30 seconds will help to prevent you from overcooking your sushi making the rice mushy. 

Most of the time, you will be able to microwave the sushi for less time than this, but you should stop at 30 seconds to prevent overcooking it.

How to Reheat Sushi Using the Microwave

In this section, you will find instructions on the proper way to reheat sushi using the microwave.


  • Place the sushi in a microwave-safe dish
  • Fill a glass or small microwave-safe bowl with water
  • Place the sushi in the microwave along with the water
  • Microwave the sushi and water in increments of 10 seconds
  • Check between every increment until the sushi is at the ideal temperature
  • Stop at a total of 30 seconds
  • Remove sushi and enjoy

Adding water to the microwave while you are reheating your sushi provides your sushi with another source of moisture. This helps to prevent your sushi from drying out while you are reheating it. This is also a good strategy when you are reheating rice in the microwave

What are Other Ways to Reheat Sushi?

Outside of microwaving, there are several other popular ways to reheat sushi. Some of these ways include steaming, panfrying, deep frying, and baking.

Steaming is one of the best ways to reheat sushi. Since you are heating the sushi with water, you can prevent the sushi from drying out. It also allows you to heat the sushi gradually which makes it difficult to overcook the sushi.

Panfrying and deep frying are two popular methods for refreshing day-old sushi. These are best used for more savory rolls that will also taste good with crispy rice and the fattiness from the added oil.

The last method is baking. Baking your sushi can pose some of the same challenges as microwaving it and can also change the texture. If you decide to bake your sushi make sure that you add a source of moisture.

Do You Eat Sushi Warm or Cold? 

If you decide to eat your sushi warm, heating it up in the microwave is a perfectly acceptable way to do so. It allows you to heat the sushi up very quickly without changing the texture too much. However, not everyone wants to heat their sushi up.

Many types of sushi are also eaten cold, and a lot of people prefer it this way. It is thought that eating sushi cold can help the flavors to stand out from one another better.

So now we leave you with this question, do you prefer eating sushi warm or cold?