Starter cultures produce acidity in milk and add flavor to cheese. Each pack contains 5 cultures. *Flora Danica - This (mesophilic type) culture adds a buttery taste to any soft cheese such as Havarti Gouda Edam Camembert Brie Feta Blue Buttermilk Sour Cream Cream cheese Creme Fraiche and Cultured Butter. This culture may be used as a direct set culture or to incubate a mother culture. The culture will also produce a small amount of carbon dioxide gas and is therefore a good culture choice when a lighter texture cheese is desired.