How does Ejiao distinguish between true and false?

A look at the surface characteristics shows that the surface of genuine Ejiao is dark brown, with smooth rubber blocks and uniform color, without oil holes and air holes. The surface of fake donkey-hide gelatin blocks is generally brown or bluish yellow, and some have oil holes and air holes. And the rubber block is irregular.

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/shipping.people.com.cn/GB/11816885.html "target =" _ blank "title =" Only one link can take effect "> People.com-Four" unique tricks "teach you to choose authentic Ejiao!