2. Douchi is made by decomposing soybean protein with black beans or soybeans under the action of Mucor, Aspergillus or bacterial protease. To a certain extent, salt, wine and dried fruits are used to inhibit the activity of enzymes and delay the fermentation process.
For more information about cleaning douchi before eating, please visit:/ask/0660781616043822.html? Zd view more content