Top 5 foods you should avoid reheating in oven

             Written by: Ehsan Siddiqui

9 June 2025

Leftover food and microwave ovens can be a lifesaver, especially when you're in a hurry. However, you should steer clear of some foods as reheating them causes them to lose nutrients or become harmful. 

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Boiling eggs again in a microwave oven can cause them to explode, releasing toxic chemicals that are bad for your health and can even cause cancer.

Boiled Eggs

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Bacillus cereus, a bacteria found in rice can multiply when kept at room temperature. Reheating rice in a microwave oven does not stop the growth of Bacillus cereus, which can lead to health problems.

Rice

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Mushrooms have proteins that break down fast. They not only become rubbery and less appetizing when reheated, but can also cause digestive problems, stomach pain, and even food poisoning.

Mushrooms

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Coffee loses its flavor when it cools down; heating it again might eliminate any lingering scent and leave it tasteless and boring.

Coffee

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The microwave oven fails to reheat the food evenly, which in this case can mess up chicken's protein structure, making it difficult to digest and create problems in your gut or food poisoning.

Chicken

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