Black sauce is very expensive. Maotai with black sauce is a special kind of existence in Moutai, and it is a noble in wine. Black sauce and yellow sauce have similar names and are synonyms. We know that Maotai belongs to maotai-flavor liquor factor, and it is easier for users to understand it by naming it with black sauce and yellow sauce. The keynote wine and production technology used in this wine are rarely used by wineries now, and the stock is also very small, so its collection value is also very high, and the unit price of a bottle at auction.