M Series is a selected single strain of Lactococcus lactis subsp. lactis. It is a highly concentrated, direct-set, fast acidifying culture for manufacture of American-style and other semi-hard cheeses. Bacteriophage rotation available: M58, M60, M61, M70, M71

This product is FROZEN and requires special handling and storage (≤ -49°F). Please call to order; ordering of this product is not available on our website due to its special handling requirements.