Can you microwave glass?
Some glass containers are made for the microwave. Check the maker's instructions first, and treat the lid separately.
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Check the maker
Use a container in the microwave only if the maker says it can go in the microwave. Some glass has metal trim or decoration, which does not belong in a microwave.
Lids and venting
Check whether the lid can go in the microwave. USDA advises covering food to reheat and venting the lid or wrap to let steam escape.
Heat evenly
USDA advises covering and rotating food for even heating, because microwaves have cold spots. Reheat leftovers to 165 °F, checked with a food thermometer in several places.
Watch for temperature shock
Avoid microwaving a container straight from the freezer unless the maker allows it, and let hot glass rest on a dry surface.
FAQ
General information only. Follow the maker's instructions for oven, microwave, freezer, and dishwasher use. Glass can crack or break from sudden temperature changes or impact. For food safety, follow USDA and FDA guidance.
Related guides
Why glass cracks
Thermal shock explained.
