1. microwave steamer, bottom box that can hold water, and the amount of water added depends on the steamed food. For example, steamed corn should occupy at least 2/3 of the height of the box, so that the steamed corn tastes better.

2. When using a steamer, the dosage depends on the total amount of ingredients. For example, two pieces of corn should be cut into 2~3 inches long, which is beneficial to the rapid maturity of corn. It takes about 10~ 15 minutes to cover with high firepower. Steamed sweet potatoes do not need water, but they need to be covered. It is best to choose slender sweet potatoes. Generally, 4~5 sweet potatoes are steamed and covered at a time, and the noodles need to be turned every 6 minutes, which takes about 12 minutes.