Steamed dumplings are heated by steam, which is a slow process that usually takes 10-25 minutes. Vegetarian dumplings are easier to cook, and are usually cooked thoroughly in about 10 minutes.
Frozen dumplings can be steamed directly. Frozen dumplings can be thawed at room temperature before steaming, otherwise they can easily become deformed, collapse, and stick together.
Eating frozen dumplings are usually taken out of the refrigerator, and then directly into the pot above the steam, so that the steam out, the taste will not be bad.
Many people will find that after the dumplings are steamed, the outer skin is a little dry, or even hard, the same is the food made from flour, the buns are very soft, this is because the buns are made from the outer skin of the flour fermentation, with a wealth of pores, steamed out will be relatively soft, while the dumplings are kneaded, the internal firm, no pores, and therefore eat will be more powerful.
Quick-frozen dumplings will go through the process of thawing before steaming, cold water on the pot in the heating process, the dumplings are gradually thawed, and only then gradually heat through.