10 Foods You Should Never Microwave: Health Risks And Tips

Nov 19, 2025

By: Isha Agarwal

Eggs in Shell

Microwaving eggs in their shell can cause them to explode due to built-up steam inside. This can create a mess and potentially cause burns. Always boil or poach eggs using traditional methods.

Image Source: Meta-AI

Processed Meats

Hot dogs, sausages, and deli meats can release harmful chemicals when microwaved. The texture may also become rubbery and unappetising. Opt for steaming or pan-heating instead.

Image Source: Meta-AI

Leafy Greens

Spinach, kale, and other leafy greens contain high levels of nitrates, which can convert to nitrites when microwaved. This may pose health risks. It’s safer to steam or sauté them.

Image Source: Meta-AI

Breast Milk or Infant Formula

Microwaving baby milk can create hot spots that may burn a baby’s mouth. Nutrients may also degrade. Warm milk using a bowl of hot water instead.

Image Source: Meta-AI

Mushrooms

Microwaving mushrooms can change their protein composition and release harmful compounds. This may reduce their nutritional value. Cooking on a stove or oven is recommended.

Image Source: Meta-AI

Potatoes

Whole potatoes can build up steam inside when microwaved, risking explosion. Uneven heating may also leave cold spots. Always poke holes or cook in the oven for safety.

Image Source: Meta-AI

Hot Peppers

Microwaving peppers can release capsaicin into the air, irritating eyes and throat. Their flavour may also become too intense. Grill or roast them for better taste and safety.

Image Source: Meta-AI

Grapes

Microwaving grapes can create sparks and even catch fire due to their high sugar content. This can damage the microwave. Eat fresh or make juice instead.

Image Source: Meta-AI

Cheese

Microwaving cheese can cause it to melt unevenly, become oily, or develop a rubbery texture. It may also lose flavour. Melt gently on a stove or in an oven.

Image Source: Meta-AI

Plastic Containers

Not exactly a food, but microwaving food in non-microwave-safe plastics can release toxic chemicals. Always use microwave-safe glass or ceramic containers.

Image Source: Meta-AI

Thanks For Reading!

Next: 10 Simple Hacks To Keep Your Ghee Easy To Scoop In Winter

Find out More