Check out our huge selection of probiotic cultures on our website PositivelyProbiotic.com A-fil is a special fil culture with added Lactobacillus Acidophilus. Very unique. Similar to Filmjölk but more tart! You will not find this culture anywhere online as we are the first to offer this special culture to the masses! You will receive 1 TEASPOON of dried cultures. This is a mesophilic culture & ferments at room temperature. Activation instructions available on our website. PositivelyProbiotic.com Contains: Live Active Cultures, Dairy This type of yogurt culture can be used over & over again…indefinitely. This means that if you keep this culture alive, you never have to buy yogurt again. Disclaimer: Please consult your doctor before adding anything new to your diet. A-Fil Heirloom Mesophilic Yogurt Starter Culture