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Live fish carry QR codes on their bodies, and after being steamed and cooked and served at the table they can still be scanned to verify authenticity
QR codes on live fish can be scanned after steaming and serving to verify authenticity
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How to Tell the Authenticity and Quality of Medicinal Materials Such as Bird's Nest, Ejiao Cake and Ginseng
For consumers, the most commonly encountered traditional Chinese medicinal materials are precious ones like ginseng and bird's nest. 1. Bird's nest thread-pulling method: Bird's nest is an excellent tonic; high-quality bird's nest...
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Simple Methods for Identifying the Authenticity and Quality of Chemical Fertilizers
Author: Shengshi Dragon Fruit. Editor's note: As the saying goes, "A fine crop depends on fertilizer." In agricultural production, chemical fertilizers are essential, and using chemical fertilizers...
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