Mold? Or Crystals? The case of Cang Zhu
Filling a formula on at the Herbal Medicinary recently, a student in my class pointed out a white discoloration on several pieces of an herb called Cang Zhu. “Is this mold?” I took a look. Sure enough, a white patch spreading outward at various spots on some, but not all, of the Cang Zhu pieces in … More Mold? Or Crystals? The case of Cang Zhu







