There are two main points to be mastered in brewing yellow wine. The first is that the cake must be good. It is said that the wine cakes used by the Hakka people originated from the She tribe. In the past, the main ingredient of the She wine cake was a herb called wine cake grass, which could be sprinkled on to turn rice into wine. To this day, some She people still sprinkle leftover rice, whether it is glutinous rice or round-grained rice, with wine cake grass to make wine and drink it. It was from the She people that the Hakka people learned this technique and made wine cakes for sale. At the beginning, it might not be noticed by the society, but after a long time of practice and continuous improvement, it became a secret family recipe, which was not widely spread. For example, the wine cake of Ninghua Huaitu, which is used to make the specialty yellow wine, is extremely popular, but the secret of making this kind of wine cake has become the monopoly of the people of Huaitu. From this, we can see one of the influences of the She wine culture on the Hakka wine culture. Secondly, the quality of water should be good, and it must be made from high-quality liquan water, i.e., the sweet spring water bubbling up from the ground, commonly known as well water. Today's drinking water in towns and cities are mostly tap water, tap water contains bleaching powder, there is a strange taste, and wells are few, so the brewing people will switch to pumping out of the groundwater, the effect is also good, if you use tap water is not only the loss of the taste of the water, get it wrong is also prone to make the taste of the wine become sour. The above two essentials, you can't have one without the other. Otherwise, a good tank of wine, will become a tank of vinegar.