Preservation method of oysters:
One method, preservation with shell, can survive even at ordinary room temperature (as Dalian calls it).
Another method is to take out the meat and store it. If the refrigerator has zero-degree fresh-keeping function, it should be able to keep it for about 5 days, and the refrigeration is 3 days. If freezing is called chilled, just put the oysters in a fresh-keeping box and freeze them. The oysters themselves will have soup, so don't pour it out, and freeze it together to keep the flavor. In addition, the refrigerator itself is not quick-frozen, so the freezing time should not exceed half a year, otherwise it will affect the taste.
how can I tell if oysters are fresh?
it's dangerous if you don't taste the bad package of oysters until the entrance. Oyster shellers can judge whether oysters are fresh or not just by weighing and smelling them. A fresh oyster should have a closed double shell, a certain fullness and a fresh seawater aroma. After opening the lid, the situation is more intuitive. If the oyster meat obviously changes color, it looks dry, or even wrinkled into a ball, it must be bad. Oyster meat is plump, its aroma is fresh, and it is full of seawater, which is the most basic criterion.