Lycium barbarum is a thorny shrub with many branches and hard branches. Berry purple-black, spherical, sometimes slightly concave at the top, 4-9 mm in diameter. More than 95% of Lycium barbarum has stems, and the fruit contains 5-8 seeds. After drying, it is kneaded into powder by hand. Nitraria tangutorum is dark red and has no stalk. When the fruit is ripe, the stem automatically falls off, and it is mononuclear, so it is very difficult to pinch it by hand. Blueberry fruit is purple-black, sessile and seedless.

In addition, observing the fruit stalk, the fruit stalk of Qinghai Lycium barbarum is gray. If a large number of fruit stalks are blue, it must be dyed.

2, from the brewing color to distinguish between true and false.

Black Lycium barbarum soaked in water is very thick, tap water (acidic water quality) is blue, and mineral water (alkaline water quality) is purple. The sugar content is low and the water is slightly sweet. Nitraria tangutorum is light in color, high in sugar content and sweet in taste. Blueberry fruit is lighter in color, higher in sugar content and sweeter in taste after soaking in water.

Authentic black wolfberry is put into tap water, and blue appears like silk thread. As soon as the dyed fruit is put into the water, a large area of blue appears. When dyeing Lycium barbarum, there is generally only one color for brewing, and there will be no different colors under different conditions.

3. Identify strengths and weaknesses from the place of origin

The best wild Lycium barbarum is produced in Qinghai, because the anthocyanin content of Lycium barbarum produced in Qinghai is more than four points, which is higher than that of Lycium barbarum produced in Xinjiang and Gansu. Different places of origin have different prices. Real black Lycium barbarum, especially wild Lycium barbarum, has precious resources and limited output, and it costs at least 2000 yuan per catty. And other fake black wolfberry, a catty often does not exceed 100 yuan. If you encounter a black wolfberry with a low price, you should be on your guard. It may be a fake.

Black Lycium barbarum has super high health care and nutritional value, and it has been very sought after in the market in recent two years, and its price has soared. Under the expulsion of interests, some unscrupulous traders forget about profit, shoddy and fake. Consumers must keep their eyes open when buying, remember the way to distinguish between true and false black wolfberry, and ensure to buy real black wolfberry.