Heritage Yogurt Strains Available! Never buy yogurt starter again. These strains are much more richly populated with diverse healthy microorganisms than commercial types. They ferment easily, even in a warm room; I use the oven light and mason jars. No pre-heating of the milk required, you can even use raw milk. Instructions and trouble shooting available by request. Choose from: Piima, Filmjolk, Matsoni Available for pick up Monday through Friday at Stillwater Centre Unit 276, 2950 Douglas Street (Behind Lifestyles) Please give us one day's notice to prepare your culture