Identification of medicinal materials: how to tell whether a bird's nest is good or bad? How to tell the real ginseng from the fake ginseng when buying gelatin cakes

For consumers, the traditional Chinese medicine that comes into contact with the most is precious traditional Chinese medicine such as ginseng and bird's nest.

1 Bird's nest drawing method: bird's nest is a nourishing product, high-quality bird's nest is arranged in the shape of silk, the water is silvery white, bright and transparent, the body is soft, elastic, pulling and stretching reaction.

2 Ejiao beat method: Ejiao is made from donkey skin. When identifying, you can hold the glue block in your hand and slap it hard on the table. The glue block is brittle and broken into pieces, and the broken pieces are brown, translucent and free of foreign bodies. If the patter is soft and not broken, it is suspected to be a counterfeit.

3 ginseng taste method: ginseng taste is very special, the real taste bitter sweet, if with spicy, sour and astringent taste is counterfeit.

4 Panax notoginseng blood method: put Panax notoginseng powder into a small amount of pig blood, pig blood can be found into water, which is mainly due to the hemolysis of Panax notoginseng saponins.

5 pearl blasting method: after the authentic pearl is burned with fire, it can be found that it is broken in lamellar shape and shines brightly; if it becomes broken or scorched after burning, it is a counterfeit.

6-day steam method: when Gastrodia elata is identified, in addition to paying attention to "parrot mouth" (stem base mark), "link" (whisker root mark) and "concave navel", Gastrodia elata can be steamed in water, and those who smell its smelly smell (horse urine) are authentic.

seven

Bezoar nail painting method: take a little powder water wet, apply to the nails, if it is natural bezoar, then its yellow does not fade for a long time.

eight

Bear bile spin method: it is advisable to put a few gallbladder kernels into a cup full of water and find that the gall kernels in the cup hover and sink and dissolve into a yellow line is the authentic, other animal bile does not hover.