U.S. Edition

MA 11 vs MM 100: Which Mesophilic Culture?

Same family, one strain apart — and that strain changes your cheese.

Choozit MA 11 Mesophilic CultureChoozit MM 100 Mesophilic Culture
Made byDanisco Choozit (IFF)Danisco Choozit (IFF)
FamilyMesophilicMesophilic
StrainsLactococcus lactis subsp. lactis + subsp. cremoris (no gas, no diacetyl)Lactococcus lactis subsp. lactis + subsp. cremoris + biovar diacetylactis (adds diacetyl + CO2)
Pack50 DCU foil pack · inoculates large batches — home makers split it into 6–12 gallon batchesFoil pack as listed at retailer
Price$14.95$14.95
Best forBest value for regular cheddar makersBest for gouda, havarti and bloomy rinds

Buy Choozit MA 11 Mesophilic Culture Buy Choozit MM 100 Mesophilic Culture

The verdict

MA 11 and MM 100 share the same two base organisms. MM 100 adds the diacetylactis biovar, which produces buttery diacetyl flavour and a little CO2 gas. That single addition is the whole decision: choose MA 11 when you want a closed, clean paste (cheddar, colby, feta, chèvre); choose MM 100 when a little openness and butter belong in the cheese (gouda, edam, havarti, and the base under bloomy rinds). Farmstead makers often keep both and rotate — MM 100 and MM 101 exist as phage-rotation partners for the same reason.

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