Fine China, which typically refers to delicate and ornamental ceramic tableware, should generally not be microwaved. Fine China is often made of porcelain or bone china, which can be sensitive to extreme temperature changes. Microwaving can cause the China to heat unevenly, leading to potential cracking, chipping, or even shattering.
Additionally, fine China often contains metallic accents or decorations such as gold or silver trim. Microwaving metallic elements can cause sparks and damage to the microwave and the China itself.
If you need to heat food or beverages in fine China, it is best to transfer them to microwave-safe containers. Look for dishes specifically labeled as microwave-safe, which are designed to withstand the heat and ensure safe usage in microwave ovens.