Can glass cups be heated in a microwave oven?
Time：
2024-03-20 14:04
Whether a glass cup can be heated in a microwave oven depends on the material and craftsmanship of the glass cup. Specifically:
Ordinary glass cups and tempered glass cups are not suitable for heating in a microwave oven. Ordinary glass cups have poor heat resistance and can only withstand a temperature difference of about 60 degrees Celsius. Rapid heating or cooling can cause them to crack. Tempered glass cups, due to uneven heating during processing, may cause an imbalance of internal and external stress in the cup, which may cause it to explode when heated.
Heat-resistant glass cups and glass cups marked with "microwave safe" or "suitable for microwave ovens" can be heated in a microwave oven. These cups have undergone special processing, have a small coefficient of expansion, and have good high-temperature resistance, able to withstand the high temperatures and temperature changes in a microwave oven.
In addition, it should be noted that glassware taken from the refrigerator should not be directly heated in a microwave oven, as the large temperature difference may cause the glassware to crack. The heating time should not be too long to prevent the glass from breaking. If you are unsure whether a particular glass cup is suitable for microwave heating, consult the manufacturer or a professional.
Ordinary glass
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