The oysters are usually steamed, because this can largely retain the original flavor of the oysters, and with the garlic together with the flavor is more absolute.
The oysters should be pried from their shells so that they can be eaten more safely. The oyster itself is living in the deep sea, will adsorb more dirt, so the oyster's body must have a lot of bacteria and dirt, and even feces, which will make the oyster eat more fishy.
While oysters will open their shells automatically during the cooking process, there is no way to get rid of the inside completely even after high-temperature treatment, so this requires opening the shells in advance.
Before opening the shell, you need to soak the oysters in soda water for more than an hour, and then use a brush to scrub the shell clean, after which the oyster meat is separated out and repeatedly rinsed with water to remove the dirt inside, it is best to drain the water and spare, after opening the shell of the oysters is more convenient to taste, taste is also better.