Cooked oysters can be cooked in 5- 10 minutes. The cooking time of oysters has a certain relationship with the size and quantity of oysters. Generally, the larger the size and quantity of oysters, the longer the cooking time; If oysters are small in size or quantity, the cooking time will be shorter. Generally, water can be boiled for 5- 10 minutes after boiling, which can be judged by the state of oysters. However, oysters are usually cooked with fire. If roasted with fire, oysters can be cooked quickly. If cooked for too long, the taste and taste of oysters will be compromised, and the nutrients of oysters will also be lost. Balanced nutrition, better combination of meat and vegetables. Oysters with shells usually take 7-8 minutes to cook. Oysters are rich in protein. Cooking time is too short, protein will not be completely denatured, which is not conducive to the human body's absorption of protein. However, if the cooking time is too long, the degree of degeneration of protein will be too strong, which is not conducive to the human body's absorption of protein. Therefore, it is more appropriate to steam oysters with shells for 7-8 minutes and oysters without shells for 3-5 minutes. The way to judge whether oysters are steamed is to see whether the fishy smell of oysters is reduced and whether the color of oyster meat is reduced. At this time, in order to ensure food safety and good absorption of nutrients to a greater extent, it is more appropriate to control oyster cooking with shell for 7-8 minutes and cooking without shell for 3-5 minutes. It is suggested that patients with skin diseases and spleen and stomach deficiency and cold should not eat oysters. Oysters are cold foods, which can cause stomach pains and other symptoms.