are glass coffee mugs microwave safe

Are Glass Coffee Mugs Microwave Safe?

Coffee mugs come in all shapes, sizes, and materials. A recent trend is to use glass mugs for coffee. But is it safe to use a glass mug in a microwave?

The Answer:

No, it is not safe to use a glass coffee mug to reheat drinks in a microwave. Glass can easily shatter when heated up in a microwave, leaving dangerous pieces of glass scattered inside.

What are Some Safe Alternatives?

  • Ceramic Mugs – Ceramic mugs are the safest option for reheating drinks in a microwave. Unlike glass, certain types of ceramic are designed to withstand very hot temperatures.
  • Steel Mugs – Stainless steel mugs are also a safe option for the microwave. They do not shatter like glass, and can handle high temperatures.
  • Plastic Mugs – Non-plastic mugs are not recommended for use in the microwave, as they can easily melt under the high heat.


Although glass coffee mugs may look stylish, users should always exercise caution when reheating drinks in the microwave. It is not safe to use a glass mug for this purpose. For the safest reheating results, choose ceramic mugs, stainless steel mugs, or plastic mugs.

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