This Sourdough Starter Culture requires no cultivating. You can add this straight to your dough mix without any hassle of growing or maintaining your sourdough starter. This culture contains: Yeast, Dextrose, Lactococcus lactis subsp. Cremoris, Lactococcus lactis subsp. lactis, Lactococcus lactis subsp. lactis biovar diacetylactis. Each sachet can be used to ferment dough recipes that use up to 6 cups of flour. Contains: milk/dairy