Microwave Food Safely: Cover, Stir, Rest, and Check Temperature

Microwaves can leave cold spots

Microwave heating may be uneven, even when the oven has a turntable. Food that is cold in one area may not have reached a safe temperature. USDA FSIS recommends arranging food evenly, covering it with a microwave-safe lid or wrap, and stirring, rotating, or turning it partway through heating when possible.

Leave space for steam to vent. Use only containers marked microwave-safe, or suitable glass or ceramic cookware. Do not let plastic wrap touch food, and follow the microwave and food-package instructions.

Allow standing time and check

Some foods continue to heat after the microwave stops. Let food stand for the time given in the instructions, then use a clean food thermometer to check several places, especially thicker areas. For reheated leftovers, FoodSafety.gov advises heating to 165 degrees F. Check the correct safe temperature for the specific food rather than guessing from appearance.

If cooking raw meat or poultry in the microwave, follow a tested recipe and check the temperature in multiple locations. Bone can shield parts of meat from heat. USDA advises not to rely on the microwave's display or a visual check alone.

Handle containers and steam carefully

Open covers away from your face to avoid steam burns. Use oven mitts when removing hot dishes, and stir food carefully because some areas may be much hotter than others. Keep raw foods separate from ready-to-eat foods and wash hands and utensils after contact with raw meat or poultry.

When reheating a large amount, divide it into smaller portions so it heats more evenly. Follow package directions and discard perishable foods that have been left unrefrigerated too long.

Sources and further reading

• Cooking with Microwave Ovens
• Safe Minimum Internal Temperatures

Health disclaimer

This article is for general education only. Its information and suggestions are not medical advice, diagnosis, or treatment and may not be right for everyone. Ask a qualified health professional for advice that fits your health, medications, and needs before changing your diet, exercise, supplement use, or care.