are glass coffee mugs microwave safe

Are Glass Coffee Mugs Microwave Safe?

When it comes to reheating your coffee in the microwave, you may be wondering if it is safe to do so in a glass mug. The short answer: it depends. Before you warm up your favorite cup of java, read on to learn more about the safety of using a glass mug in the microwave.

Materials Matter

Glass mugs come in a variety of materials. While some are safe to use in the microwave, others are not. Before you place any glass mug inside the microwave, it is important to make sure it is microwave-safe. The following materials are safe to use in microwaves:

  • Soda-lime glass
  • Borosilicate glass
  • Heat-resistant borosilicate glass

If you are unsure of the material, you can always look for a label or inscription that indicates the mug is microwave-safe.

How to Use It Safely

If your mug is made from one of the materials above, you can safely place it in the microwave. However, you should always err on the side of caution when using a glass mug in the microwave. To help ensure safety, follow these tips:

  • Keep an Eye on ItA glass mug can heat up quickly, so it is important to keep a close eye on it while it is in the microwave.
  • Handle With CareWhen removing it from the microwave, be sure to use an oven mitt as the mug may be hot.
  • Avoid AdditivesDo not mix sugar, honey, or any other additives into your coffee in the mug, as this could cause the mug to shatter.


To ensure safety, always choose a mug that is labeled as being microwave-safe. Additionally, be sure to keep an eye on it while it is in the microwave and handle it with care when removing it. Following these tips can help you to enjoy your favorite cup of joe safely and conveniently.

Latest Posts

Send Us A Message

Join us