Thanks to "burtontube" who pointed out to me that I should have said that puffball powder is a COAGULANT not an anticoagulant.I stand corrected!The Giant Puffball ("Calvatia gigantea") & it's smaller relatives are good mushrooms for beginners to try as they have no gills and are white inside. Their taste is rather bland so they take on the flavors of whatever they're cooked with. DON"T EAT ANY MUSHROOM UNLESS YOU ARE 100% SURE OF ITS IDENTITY!