Soak the dried lotus seeds in boiling water for 5 to 10 minutes. Dry lotus seed refers to the dried lotus seed formed by air drying, which can be used to measure the concentration of sea salt brine. When the brine is dried for the third day, the lotus seeds with light weight are put into the brine, and the lotus seeds can float and are flat with the brine surface, which is called 50% brine. Put 50% brine in the fourth pond for a period of time, and then put the heavier lotus seeds into the brine. If the lotus seeds can float and be level with the brine, it is called 80% brine.

Soak the dried lotus seeds in boiling water for 5 to 10 minutes. Dry lotus seed refers to the dried lotus seed formed by air drying, which can be used to measure the concentration of sea salt brine. When the brine is dried for the third day, the lotus seeds with light weight are put into the brine, and the lotus seeds can float and are flat with the brine surface, which is called 50% brine. Put 50% brine in the fourth pond for a period of time, and then put the heavier lotus seeds into the brine. If the lotus seeds can float and be level with the brine, it is called 80% brine.