Cheese making is an ancient process of culturing milk. While it is possible to make cheese without a cheese culture (take these acid cheeses for instance), using. Cultures, otherwise known as "starters" are used to ripen milk and help start the cheese making process. Cultures marked with (DS) are Direct Set, they are the. Whether you are making blue cheese, yogurt, or feta, you will need active cultures. When you need cultures for your cheese making, shop The CheeseMaker.