The odor of snail powder mainly comes from two sources, namely the smell of sour bamboo shoots and snail meat.

Some people think that sour bamboo shoots are the essence of snail powder, which is made by soaking fresh bamboo shoots for half a month. The special technology used in the fermentation process can not completely isolate oxygen. In this process, anaerobic bacteria and aerobic bacteria cooperate to transform sugar and protein in fresh bamboo shoots into amino acids and organic acids, which will emit a "charming" smell.

In addition, there are naturally screws in snail powder, and a certain amount of screws will be added when cooking snail powder soup. The soup cooked with screws will produce a special fishy smell when it is cold, but the fishy smell will disappear after the snail powder is cooked.