7 Foods You Shouldn’t Reheat

Some foods become toxic when reheated. Such foods are better used in salads or cold dishes to avoid health risks.

What foods should never be reheated?

There are a few rules to follow in order not to throw away food after buying it. There are people who suffer from malnutrition due to lack of food somewhere on Earth, but huge amounts of food are thrown away every day.

Store the food in the refrigerator and reheat it after a day or two so there is no need to throw it away.

However, many people do not know that there are foods that should not be reheated. Reheating these foods creates toxins that are harmful to health.

What kind of food would it be?


Chicken is one of the most common foods in the refrigerator. It can be stored easily and the taste is maintained even after reheating. However, chicken should be cooked right away or eaten cold.

Reheating the chicken changes the protein structure, making it difficult to digest when eaten. If you can’t eat it right away after cooking, and you have to reheat it, you must reheat it at a low temperature.


There are tens of thousands of ways to cook mushrooms, and you might think that reheating them doesn’t matter. However, mushrooms are best eaten right after cooking. That way, you can consume the healthy ingredients contained in mushrooms as they are.

If you can’t eat it all and have some left over, it’s better to just eat it cold. Reheating changes the composition of mushrooms, which can cause stomach pain or bloating if eaten.


Potatoes are a very nutritious food. You can keep it in the refrigerator for a few days, but never reheat it. Reheating can change the taste and even make it toxic.

Leftover potatoes are best eaten in salads or purees.


Spinach is a healthy food, but it should not be reheated. It has a high nitrate content and is converted to nitrite when high temperature is applied. Nitrite is an unhealthy ingredient. Spinach should always be eaten fresh.


Even in modern times, nitrates are contained, and when heated again, nitrates are converted into nitrites. It should never be reheated. For the efficacy of beetroot, it is good to make it into a salad or smoothie.


If you put celery in the soup, do not reheat it. Celery, like other foods described above, contains nitrates, which are converted to nitrites when standing again.

This means that reheating can be a carcinogenic food. If you must reheat soup cooked with celery, remove all the celery and reheat.


Eggs are also one of the foods that are usually reheated. Reheating eggs at high temperatures can make the ingredients in them toxic.

The foods described above should never be reheated, but that doesn’t mean they can’t be reheated.

To avoid toxicity, consider the following tips when reheating:

  • When reheating, quickly reheat to 150°F.
  • When reheating, only reduce the amount to be eaten and reheat.
  • Cooked and uncooked food should not be kept together.
  • Since all ingredients are different, they cannot be reheated the same way. When reheating more than one food, make sure the heat is evenly distributed.
  • If you are unlikely to eat it again within 4 days, it is better to just freeze it.
MI Asian Staff
Author: MI Asian Staff