Chuanbei Lemon Balm
1.
Soak the lemon in salt water for ten minutes, then scrub it with salt
2.
Slice the lemon and pick out the lemon seeds
3.
Put 10% rock sugar in the saucepan, put lemon slices in the middle, and 10% rock sugar on top. Simmer for ten hours on low heat. You can put the rock sugar according to your own grasp.
4.
Put Chuanbei down when it is boiled for five hours. Chuanbei can be powdered. This is the finished product.