(PS: Specail thanks to Reader_68***408 and BrianS***ns for Massage Chairs! 10 extra chapters for you! 5/10)

Each type of medicinal herb should not be purified for more than two quarters of an hour. If the time is too long, the efficacy will be lost.

Without purification, the pill cannot take shape.

The conventional method of purification is to temper each herb individually and then place the purified herbs on an insulating layer for later use.