Dangers of Microwaving Certain Foods

Many of us rely on microwaves to quickly prepare meals or snacks, but caution must be taken as some foods can be dangerous to health when heated in this appliance. Breast milk, broccoli, defrosted fruit, and other items should not be placed in microwaves, so it's important to educate oneself on which foods are safe for use in this appliance.


Mother milk

Breast milk is highly beneficial for infants and young children as it contains antibodies that help fight infections in their early months of life. However, heating breast milk in a microwave can significantly increase the presence of E-coli bacteria, which can cause intestinal diseases. Additionally, microwave heating reduces the activity of enzymes and can produce harmful bacteria for the baby.

Warming breast milk in the microwave can create substances that are not good for the baby


You can still cook broccoli in the microwave, but this method will reduce the nutrient content of the vegetable. Microwave steaming alone can lead to an 11% loss of antioxidants in broccoli, while boiling broccoli in the microwave may result in a loss of up to 97% of its beneficial antioxidants.

Microwaving broccoli can reduce antioxidant levels

Frozen fruit

Defrosting fruit in the microwave can convert beneficial compounds into carcinogenic substances. It is recommended to defrost fruit naturally instead.

Microwaves will convert the nutrients in the fruit into harmful substances

Food wrapped in plastic or in plastic containers

Cooking food in plastic trays or containers in the microwave can lead to the production of carcinogenic substances. It is important to be cautious with plastic shells as they can release dangerous chemicals into the food.

Plastic shells can create carcinogens


The high temperature in the microwave can cause the spicy substance in chili peppers, capsaicin, to evaporate and escape.

The spiciness in chili peppers can make you uncomfortable


Baking bread in the microwave can make the cake dry, hard, and less delicious. It is better to use an oven for baking bread.

Bread will not taste good if cooked in the microwave


Heating water in the microwave can cause bubbles to form, and when these bubbles break and burst out of the glass, they can cause burns. It is important to avoid microwaving water.

Microwave heating is very dangerous


Similar to water, it is not advisable to put drinks like wine or champagne in the microwave as they can cause explosions and damage the oven.

Can Champagne Be Harmful to the Microwave?


Like bread, pizza should not be microwaved as it can become hard, dry, and lose its flavor.

Microwave will make pizza less delicious


Grapes, whether fresh or dried, should not be microwaved as they can explode during cooking and release gas that can damage the oven. If desired, sprinkle a little water on the grapes, cover them with a plastic bag, and microwave for 30 to 40 seconds.

Grapes can explode in the microwave

Using a microwave oven effectively and properly is essential for preparing safe and delicious food. If you are aware of other foods that should not be put in the microwave, please share your knowledge to help others avoid potential risks.

You may also like

What Foods You Should Avoid Heating in the Microwave

The U.S. Food and Drug Administration has revealed that there is no legal requirement for manufacturers to test food safety when it comes to microwaving.

8 Ways to Keep Your Family Kitchen Organized and Tidy

While everyone has spices in their home, not everyone knows how to store them in the most convenient and tidy way for their family kitchen.

The Mistakes You Often Make When Trying to Clean a Plastic Box Forever

Many individuals wonder why plastic containers do not come out clean after washing, without realizing that there are certain mistakes that can lead to the persistent uncleanliness of these containers.

Never put these 5 things in the microwave or you’ll regret it!

Here are 5 things you should never put in the microwave as it will ruin the food and potentially affect those who will eat it.

Secrets to Eliminating Odor from Plastic Food Containers

After prolonged use, plastic containers can develop odors that make cleaning and eliminating smells more difficult. The following tips will help you get rid of lingering odors in your kitchen’s food storage plastic containers.