Oyster sauce tastes bad. It has gone bad According to relevant public information, we know that oyster sauce is a condiment made of oysters, that is, oysters. Using oyster slices as raw materials, cooked, concentrated juice and auxiliary materials were carefully prepared. Oyster sauce has the reputation of submarine milk, which is enough to show the delicious and mellow aroma of oyster sauce. The nutritional value of high-quality oyster sauce is also high. Contains crude protein, sugars, organic acids, iodine, calcium, vitamins and other nutrients. Oyster sauce is also widely used, often eaten with vegetables, fresh mushrooms and beef.