Best Practices for Using a Microwave Oven

A microwave is a convenient kitchen appliance that makes cooking, reheating, and defrosting food faster and easier. However, using it properly helps keep your food safe, maintain the appliance, and get the best cooking results.

Here are 12 useful tips for using your microwave safely and effectively.

1. Use microwave-safe containers

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• Use microwave-safe glass, ceramic, or labeled microwave-safe plastic.

• Avoid ordinary plastic containers that are not microwave-safe.

• Never put metal utensils, aluminum foil, or dishes with metallic decorations inside.

2. Cover your food while heating

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• Use a microwave-safe cover or lid.

• Leave a small opening for steam to escape.

• This prevents splattering and helps food heat evenly.

3. Stir and rotate your food

• Stir soups, sauces, and other liquid foods halfway through heating.

• Rotate dishes if your microwave does not have a turntable.

• Rearrange food to help eliminate cold spots.

4. Use the correct power setting

• High power: Heating water and reheating many foods.

• Medium power: Cooking vegetables and heating delicate dishes.

• Low power: Defrosting meat and softening butter.

5. Avoid overheating liquids

• Heat liquids in short intervals.

• Stir before drinking.

• Be careful when removing hot cups because water can become superheated and erupt unexpectedly.

6. Defrost frozen food properly

• Use the microwave's defrost setting.

• Separate pieces of meat or chicken when possible.

• Turn the food during defrosting.

• Cook meat and poultry immediately after microwave defrosting. 

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7. Never microwave certain items

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Avoid putting these inside:

• Metal forks, spoons, and aluminum foil.

• Whole eggs in their shells.

• Styrofoam containers not labeled microwave-safe.

• Brown paper grocery bags.

• Sealed jars and tightly closed containers.

These can cause sparks, fires, pressure buildup, or explosions.

8. Allow food to stand after heating

Let food rest for a few minutes after cooking. This helps distribute heat evenly and reduces cold spots.

9. Check food temperature

Use a food thermometer when cooking meat, poultry, and leftovers. Reheated leftovers should reach 165°F (74°C) throughout. 

10. Keep your microwave clean

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• Wipe spills immediately.

• Clean the interior regularly with a soft cloth and mild detergent.

• Remove food particles and grease.

• Keep the door and seals clean.

11. Protect yourself from burns

• Use oven mitts when removing hot dishes.

• Open covers away from your face.

• Be careful of hot steam.

• Keep children supervised when using the microwave.

12. Inspect your microwave regularly

• Check that the door closes properly.

• Do not use it if the door, hinges, or seals are damaged.

• Never operate it with the door open.

• Follow the manufacturer's instructions. 

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Helpful microwave safety videos

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Bonus: 5 common microwave mistakes to avoid

1. Heating food in ordinary plastic containers.

2. Reheating food without covering it.

3. Using maximum power for everything.

4. Heating food for too long without checking it.

5. Forgetting to stir food and check its temperature.

My best advice: Treat your microwave as a cooking appliance, not just a food warmer. Use the right containers, appropriate power settings, proper heating times, and safe food-handling practices.

Reference: U.S. Food and Drug Administration – Microwave Oven Safety