2. Open the oyster for 5 to 7 minutes. If the oyster is steamed with the shell open, the steam can directly act on the protein, and steam it for 5 to 7 minutes after the pot is boiled.
3. steam oysters in the whole shell for 1 minutes. It takes a long time to steam oysters with thick shells. Generally, it takes about 1 minutes to steam smaller oysters, and it takes about 13 minutes to steam larger oysters.