“Turkey Tail” mushroom, Yun zhi, polysaccharide K (PSK), polysaccharide-peptide (PSP), versicolor polysaccharide (VPS) What are the medicinal properties and how is it used? Traditionally, our ancestors boiled mushrooms in water to make a soothing tea. Boiling served several purposes: killing contaminants, softening the flesh, and extracting the rich soluble polysaccharides. The mushrooms — called fruiting