1. A fake wolfberry is smoked with sulfur. This kind of medlar will have a pungent smell if you smell it carefully. There is also a business in order to make the color of Lycium barbarum more vivid, it will be colored with dyes. This kind of Lycium barbarum will fade badly when it meets water. Therefore, consumers must keep their eyes open when choosing.

2. The shape of Lycium barbarum in Zhongning, Ningxia is oval and flat, and the Lycium barbarum in other producing areas is mainly round, and the fruit shape in some producing areas is longer but thinner. The second is to look at the color. The fruit of Zhongning Lycium barbarum is red or purple, and the fruit color is consistent. Lycium barbarum in other producing areas is mostly bright red or dark red, and the fruit color is inconsistent.

3. The navel of Lycium barbarum in Zhongning, Ningxia is obvious, the navel is white, and the top of fruiting body is not obvious. The fourth is to look at agglomeration. In the range of international water content (13%), Lycium barbarum can agglomerate everywhere when pressed, and only by gently pressing Zhongning Lycium barbarum, the agglomeration will loosen immediately, and it is difficult for Lycium barbarum from other producing areas to loosen immediately.

4. When you buy Lycium barbarum, you can take a few pieces and put them in a cup with water. Zhongning Lycium barbarum has large particles and large area, and will not sink immediately. Other medlars are sinking, too In addition, you can rub it with wet hands to see if it will fade. If there is, it is fake. Lycium barbarum in other producing areas is difficult to loosen immediately.