1, ceramic bowls can be put in the microwave, but there are metal edges or metal patterned bowls will not work, may cause flaming, damage to the bowl and microwave. Ceramic bowls can be put in the microwave at room temperature, but can not be taken out of the refrigerator, immediately put into the microwave hot dishes. It will burst that way.
2, if you're still not sure if your bowl can be hot, put the empty bowl into the microwave, use the maximum microwave heat, about 30 seconds. Then feel the temperature of the bowl with the back of your hand, if it is hot it is not suitable for use. The lower the temperature, the better.