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Sarah Vogeley

"We use Dairy Connection for all our cheese and yogurt making needs. Great service and prices! Thank you DCI."

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"Thank you for the great service and great product. My order arrived very quickly, and I really appreciated the personal service I received."

Marcie McBee

"Great source for cultures."

RA Series (RA 21)

Mesophilic blend often used for cheddar. Produces a slightly different flavor than the MA series, another culture blend used for cheddar.

ContainsLactococcus lactis subsp. lactisLactococcus lactis subsp. cremoris, Streptococcus thermophilus, sucrose, maltodextrins

Primary Applications: Cheddar, semi-hard cheeses

Allergens (US): NONE

GMO Status: non-GMO

Kosher Status: Kosher Dairy, certificate available

NOTE: The RA series of cultures (RA 21 and RA 22) are known as a bacteriophage rotation and are interchangeable. Depending on stock levels, substitutions may be made depending on availability.


SKU CH-3049-DN
Weight 1.50 oz
Starting at: $21.95
Usage Rate Hobby Level  1/4 tsp. per 2 gallons milk
  • From Laura at 03/09/2015 7:31 AM
    What is the typical shelf life of the culture?
    The typical shelf life of most freeze dried cultures is 2 years if kept in the freezer or 6 months if kept in the fridge. But our cultures have been known to last much longer if moisture is kept out.
    Hope this helps.
    GetCulture Support

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