Is the dumpling lid used to cook the skin or the filling

When making dumplings, covering the pot lid is mainly for cooking the filling, while not covering the pot lid is more conducive to cooking the skin. During the boiling process of dumplings, covering the pot lid can increase the steam pressure inside the pot and accelerate the maturation of the filling; Not covering the pot lid keeps the water temperature stable and prevents the skin from cracking due to high temperature boiling. When covering the pot lid, a sealed environment is formed inside the pot, and steam cannot escape. The water temperature quickly rises and remains uniform. High temperature steam can penetrate the dumpling skin and directly reach the filling, especially for meat or difficult to cook vegetable fillings. At the same time, steam reflux will reduce water evaporation and avoid boiling the pot dry. However, attention should be paid to controlling the fire to avoid prolonged exposure to high temperatures that may cause the skin to become too soft or adhere. When the pot lid is not covered, the water is in an open boiling state and the temperature is maintained at around 100 degrees Celsius. At this time, the heat is mainly conducted to the dumpling skin through hot water, making it evenly heated and maintaining its toughness. Dumplings with thin skin or easily cooked fillings, such as vegetarian or seafood fillings. But the cooking time needs to be slightly longer, and cold water should be added in a timely manner to prevent overflow. When cooking dumplings, you can first cover the pot and cook the filling for 2-3 minutes, then open the lid and cook the skin for 1-2 minutes, taking into account the texture of the skin and filling. Using a deep pot with wide water, moderate salt, and oil can further prevent adhesion. It is recommended to put frozen dumplings directly in cold water to avoid cracking due to excessive temperature difference between the skin and filling. If the dumpling swells significantly after floating, it indicates that the filling is fully cooked and can be promptly removed.