1. Choose a porcelain bowl suitable for microwave oven: the porcelain bowl should meet certain standards, such as smooth and flat surface, no cracks, scratches and other defects, made of high-temperature ceramics or reinforced porcelain, not low-temperature ceramics or ordinary porcelain, and flat bottom.
2. Clean and dry: the porcelain bowl should be clean and dry before use, so as to avoid the residual food or moisture from generating sparks or steam when heated, which may lead to the bowl being broken or scalded.
3. Place the porcelain bowl correctly: the porcelain bowl should be placed in the center of the microwave oven to ensure uniform heating.
4. Pay attention to the heating time and power: the heating time should not be too long and the power should not be too large. Generally speaking, the heating time should not exceed 5 minutes and the power should not exceed 800 watts.