The most common method for crabs, or hairy crabs, was to steam them. However, because of the environment in which hairy crabs grew, even if the water was very clean, they always lived in the mud at the bottom of the lake. Therefore, they always had to be spat out first and then steamed.
In this way, the crab steamed would taste fresh and sweet. However, this time, Yuan Zhou obviously didn't have the time to spit out the filth and could only cook it with wine.
In fact, the cooking method of the crab was quite common. After Yuan Zhou washed the crab with a special way, he drank the wine and then spat it out. The crab was already very clean. There were two purposes of cooking the crab with wine.
The first was to let the last bit of mud sink to the bottom and be decomposed by the wine. The second was to use the beer's own fragrance and the wheat's fragrance to replace the onion, ginger, and garlic to remove the fishy smell.