Teach the easiest way. Scald the antelope horn in water. Pick it up and smell it. This is a special smell. If you can't smell anything or anything else, it's definitely not true.

I don't know what your antelope horn silk looks like. If it looks like fine powder, you can also boil it in boiling water for a while (just a small bowl of boiling water is enough), and then you can drink it to see if it is slightly salty and has a light taste. If you stew it, you will find that the water becomes a little milky white, and the taste will be stronger if you drink it. The leftover antelope horn will precipitate at the bottom of the bowl.

Actually, I suggest you rent antelope horn from a drugstore. The drugstore will weigh it first, and then you can take it home, find a clean white sandstone and grind it in a bowl with warm water. The water will gradually turn milky white, a bit like turbidity, but it is beautiful and light milky white. If you think it's almost finished, you can drink it directly. This is the best effect.