An oyster opening its mouth does not necessarily mean it is dead. When an oyster survives in the sea, it absorbs nutrients through breathing, so if it opens its mouth, it is most likely breathing. In addition, oysters will also crack due to impact during transportation. These kinds of oysters are also edible. However, if the oysters are dead, they will also open their mouths, so it is not recommended to continue eating them.

Oysters are the longest-lasting shellfish. They can be stored in a dry container and covered with a damp cloth at a temperature of 5°C to 8°C. 7~10 days. When storing, you must pay attention to keeping the oysters flat side up and arranged neatly, and cannot be placed upside down, otherwise the water in the oyster shells will drain away, not only losing the charming seawater taste, but also becoming dry and tasteless.

How to open oysters:

1. Put the oysters in the sink for later use. Fresh oysters will be covered with some sediment, which must be disposed of before opening the shell. , the best way is to brush it off.

2. After washing, put it into a plate. Use the tip of a knife to gently turn the oyster shell to make a small gap.

3. Find the gap between the two shells from the gap, place it against the flatter side of the shell, and slowly extend it from the tip of the knife.

4. When it is halfway in, shake the knife up and down to cut off the shell muscle on one side.

5. After cutting the shell muscle, the shell will open easily. Remove one shell and the process of opening the oyster is complete.