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M Series

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.


American and specialty-type cheeses

375 DCU per 5,000 lbs milk

Lactococcus lactis subsp. lactis

Kosher Dairy, certificate available


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CHN 22