Put it on. It's delicious. Oyster sauce is made from boiled oyster sauce concentrated juice. Contains protein, sugars, organic acids, iodine, calcium, vitamins and other nutrients, especially zinc, which is suitable for people with zinc deficiency. Adding oyster sauce to stewed beef can make up for the lack of tasteless beef and increase the freshness of dishes. At the same time, the smell of oyster sauce can be blended with beef, making the whole dish more delicious, so the stewed beef consumes less oil and tastes delicious.