1. Depend on taste. The real donkey-hide gelatin cake tastes very good. The more you chew it, the more fragrant and sweet the aftertaste becomes. The more you eat it, the more you want to eat it. The fake ones are very hard, hard to eat, and have an indescribable taste. Once you have tasted the authentic ones, you can tell Distinguish between true and false.

2. Crispness. Donkey-hide gelatin is a piece of glue made from donkey skin. It has a brittle texture and can be broken into pieces by tapping it with your hands. And small pieces of donkey-hide gelatin will dissolve within half an hour when put into hot water. Once the gelatin dissolved in hot water is refrigerated, it will turn into jelly. Donkey hide gelatin cake is mainly made from donkey skin. When identifying the authenticity, you can take off a small piece and tap it gently. If it breaks directly, it means it is genuine. If the texture is hard, it means it is genuine. It's fake.

3. Observe the surface. There are certain differences between real donkey hide gelatin cake and fake donkey hide gelatin cake in color, shape and other details. For example, the color of the genuine donkey hide gelatin cake is brown and black, while the fake one is gray; the shape of the treasure is a rectangular flat piece with neat edges, while the fake one is square. And the edges are skewed.