1. Clean the newly bought live oysters, put them in a clean basin, be careful not to add water, cover the basin surface with a wet cloth and put them in the freezer. They can live for a week at most.

2. If you can eat it the next day, clean the oysters, put a layer of water in the basin, keep them moist, or cover them with a wet cloth and put them in a cool and ventilated place.

3. Pay attention to whether the vitality of oysters is good enough when buying oysters. When the oyster opens slightly, touch the shell of the oyster to see if it can close the shell quickly. If so, this kind of oyster will live longer.

4. Oysters that want to survive for a long time must be just caught ashore, so that the oysters have a bright appearance and a strong smell. Oysters have a complete shell, a tight mouth and a stout body.