Question: are m ware coffee mugs microwaveable?
Answer: From my observation, most manufactured glassware and mugs are microwave safe so long as they do not have metal gilding. ... You can test your mug by filling it with water and then heating it for ~30 seconds. The water should be hotter than the mug. If the mug/glass is hotter than the water, do not use it for microwaving.