Can You Microwave Silicone? The Complete Safety Guide

Categorized as Microwave Safety
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Silicone products have become a staple in many modern kitchens. From bakeware and storage containers to pot holders and kitchen utensils, silicone offers several benefits that make it a popular material choice. But one common question remains – is silicone actually safe to use in the microwave?

The short answer is yes, food-grade silicone is microwave safe. However, there are a few important factors to consider to ensure safe usage. This complete guide will cover everything you need to know about microwaving silicone, including:

  • What is silicone and is it safe?
  • Identifying food-grade vs. non food-grade silicone
  • Properly using silicone in the microwave
  • Safety tips and precautions
  • Other safe uses for silicone in the kitchen
  • Top silicone microwave products

What Is Silicone and Is It Safe?

Silicone is a synthetic rubber-like material made from silicon, oxygen, and other elements. It is an inorganic polymer that can withstand very high and very low temperatures (read more about microwaving rubber here).

Silicone has several properties that make it advantageous for use in cookware and kitchen tools:

  • Heat resistance – Can withstand temperatures from -76°F to 500°F
  • Flexibility – Can bend and flex without breaking
  • Non-stick – Provides easy food release
  • Durable – Doesn’t chip, crack, peel, or scratch
  • Inert – Chemically stable and non-reactive

Silicone used in the kitchen is food-grade, meaning it does not contain any chemicals hazardous to human health. Food-grade silicone complies with FDA standards for direct food contact.

When used properly, food-grade silicone is considered completely safe for food prep and cooking. It will not leach harmful chemicals when exposed to heat.

Identifying Food-Grade vs. Non Food-Grade Silicone

Not all silicone is created equal when it comes to safety and performance. Food-grade silicone is formulated specifically for kitchen use with stricter manufacturing standards.

On the other hand, non food-grade silicone may contain contaminants, odors, or lower quality materials not meant for direct food contact.

Here are some tips for identifying food-safe silicone products:

  • Check the label – Look for indication that the product is “food-grade” or “food-safe.”
  • 100% silicone – Beware of silicone-like materials labeled “silicone blend” or “silicone coating.” True silicone will be 100% silicone.
  • Temperature ratings – Food-grade silicone can withstand temperatures up to 500°F. Lower ratings may indicate non food-grade material.
  • Avoid odors – Food-grade silicone should not impart any rubbery or chemical smells. Strange odors may mean lower quality filler materials.
  • No plastic handles – Silicone products with plastic handles or parts may not be entirely microwave safe.

When in doubt, consult the manufacturer for verification that a silicone product is approved for food contact and microwave use.

How to Safely Use Silicone in the Microwave

Once you’ve verified your silicone products are food-grade, using them in the microwave is perfectly safe. Here are some tips:

  • No metal – Ensure silicone contains no metal pieces which can damage the microwave.
  • No plastic handles or lids – Plastic is not heat stable and may melt or leach chemicals when microwaved.
  • Hand wash – Heat and microwaves can degrade lower quality silicone over time with repeated dishwasher use.
  • Avoid overheating – Don’t microwave silicone empty for extended periods, which can damage the material.
  • Let it cool before handling – Silicone retains heat very well. Allow to cool before directly touching hot surfaces to avoid burns.
  • Follow manufacturer instructions – Check product labels for any special microwave directions.

Here are some examples of popular food-grade silicone products that are 100% microwave-safe:

  • Storage containers, bags, wraps
  • Cooking utensils like spatulas, tongs, funnels
  • Silicone molds for baking, freezing, food prep
  • Pot holders, trivets, hot pads
  • Oven mitts
  • Bowl cozies and lids

As long as your silicone is food-grade, feel free to microwave it to your heart’s content!

ProductKey Features
Silicone Baking MatsHeat resistant up to 480°F, nonstick surface, reusable
Silicone Storage BagsLeakproof seal, stain resistant, freezer and microwave safe
Silicone Oven MittsOffer grip and dexterity, heat protection up to 450°F

Microwaving Silicone: Safety Tips and Precautions

While silicone itself is safe for microwaving, there are still a few safety precautions to keep in mind:

  • No metal areas – Silicone should not have any metal rivets, wiring, or plates when being microwaved. This can damage the microwave and create fire hazards.
  • Keep silicone smooth – Don’t microwave silicone with cuts, deep scratches, or other damage which can trap heat and chemicals.
  • Avoid overheating – Don’t microwave silicone for significantly longer than cooking times or without food inside. This could potentially damage the material over time.
  • No plastic parts – Any plastic handles, attachments, or parts may melt or leach chemicals. Remove any non-silicone pieces before microwaving.
  • Handle with care – Use potholders when removing heated silicone containers and bakeware. The surfaces retain heat very well. Let cool before directly handling.

By following basic safety measures, you can confidently use your food-grade silicone products in the microwave worry-free!

Other Safe Uses for Silicone in the Kitchen

Microwaving is just one of many uses for versatile silicone in the kitchen! Here are some other safe applications:

  • Baking – Silicone bakeware is oven safe up to about 450°F. It provides even heating and easy release of baked goods.
  • Freezing – Durable silicone won’t crack when frozen and keeps food fresh in the freezer for storage.
  • Fridge storage – Silicone containers make spill-proof, air-tight food storage in the refrigerator.
  • Mixing bowls – Lightweight silicone bowls give you a non-slip grip, even when wet.
  • Steaming – Silicone steamer baskets cleanly cook foods using steam heat.
  • Dishwasher safe – Most quality silicone stands up well to heat and detergents in dishwashers.
  • Easy cleaning – Food won’t stick to silicone’s slick surface, allowing for fast cleanup.

Silicone is also reusable, environmentally friendly, and more affordable than other kitchenware options. It’s built to last through daily kitchen use.

Frequently Asked Questions About Microwaving Silicone

Is all silicone microwave-safe?

No, only food-grade silicone that is 100% silicone with no plastic fillers or parts. Always check that a silicone product is labeled as food-safe before microwaving.

Can silicone melt in the microwave?

Quality food-grade silicone should never melt, warp, or leach chemicals when microwaved properly per product instructions. It can withstand much higher temperatures. Melting indicates low quality or non food-grade silicone.

Does silicone change the taste of food when microwaved?

Food-grade silicone is chemically inert and should not impart any flavors or odors to food. Any rubbery or chemical taste likely means the product contains non food-grade fillers and is not 100% silicone.

How do you know if old silicone is still safe to use?

Inspect older silicone closely for cracks, cloudiness, stickiness, or foul odors which can indicate wear. Test for microwave safety by microwaving only water to check for leaching chemicals or melting before cooking food. When doubt, replace worn silicone products.

Can you microwave silicone lids?

Yes, as long as the silicone lid is completely 100% food-grade silicone. Any plastic knobs or attachments would not be microwave safe and should be removed.


Made from sand, silicone is a safe, versatile, and durable material that can withstand the high heats of microwave cooking. It will not melt, leach chemicals, or degrade when heated properly. Before microwaving, verify silicone products are 100% food-grade with no plastic fillers or odors.

Let silicone cool fully after reheating before handling to prevent burns. With basic safety precautions taken, microwave-safe silicone provides a great alternative to plastics for reliable, non-stick heating. Beyond the microwave, silicone continues to deliver as flexible, high-heat cookware perfect for baking, storage, mixing, and more kitchen tasks.

By Rosie Elliott

I’m Rosie. I’m a professional chef with experience in Western, Mediterranean, and Italian cuisine. I’ve been cooking for over 15 years, and I have two daughters that keep me busy!