buy
Go to the supermarket to buy that kind of "crystal shrimp skin". Generally, the market price in Chengdu is around 1.5 yuan, so don't be greedy.
wash
After you buy it, soak it in warm water twice, and then fish it twice by hand. This step is to remove excess salt and dirt.
Dry in the sun
You can bake it slowly on warm things in winter. In summer, you can put a piece of paper on a plate and put it in a sunny place to dry. Paper is put in order to prevent dust. If it still doesn't work, you can make it in a light wave oven, and be careful not to burn it.
shine
Finally, grind the dry powder cup with a grinder.
cupping glass
Buy crystal shrimp skin 1.5 yuan or so, because this amount can just be used in Heinz glass bottles.
use
Just add some rice when eating.