Two-stage low-temperature quick fermentation method for distillers' grain crabs

The invention discloses a two-stage low-temperature quick fermentation method for distillers' grain crabs. The two-stage low-temperature quick fermentation method comprises the following steps of taking crabs, thoroughly cleaning the taken crabs, performing soaking, performing draining, performing preserving, performing anaerobic pickling with grains and wine for 1-3 days, and performing aerobic pickling with grains and wine for 1-3 days. Two-stage low-temperature fermentation is adopted, through the action of two steps of performing anaerobic pickling with grains and wine and performing aerobic pickling with grains and wine, unique flavor of the distillers' grain crabs can be formed, and the fermentation process is promoted, so that the crabs are tight in meat quality and are elastic, bad flavor of the crabs is effectively removed, and the distillers' grain crabs are rich in wine fragrance and fresh, tender and delicious in taste. The period that the distillers' grain crabs are putrid and deteriorated is eff