100% Chymosin Liquid Rennet Double Strength

ChyMax Extra liquid rennet is our recommended rennet to be used while making low moisture cheeses at home. Available in multiple sizes. Perfect for making homemade cheese.

About This Product

100% Chymosin Double Strength liquid rennet is recommended, (but not required) for low moisture/hard homemade cheeses.

Chymosin is an excellent option for aged cheeses if you do not want to use Veal Calf Rennet or you want a Kosher rennet for your aged cheeses.


Can be used when making fresh cheese as well. Available in multiple sizes, great for artisan cheese makers.

Naturally produced through fermentation, double strength, Kosher, Halal, suitable for vegetarian use. Non GMO. 

Usage Rate:

Hobbyist:  Use 1/8 tsp for 1-2 gallons milk

                Use 1/4 tsp for 3-5 gallons milk



Commercial:  See Spec Sheet 
25 gallons    .22 - .32 fl. oz. (6.5 - 9.5 ml)
45 gallons    .38 - .58 fl. oz. (11.5 -17.0 ml)
100 gallons  .86 - 1.28 fl. oz. (26.0 - 38.0 ml)
**Note: Use the lower amount of rennet (listed above) with milk that has been inoculated with a lactic starter culture. Use the higher amount of rennet for milk that has NOT been inoculated with a lactic culture. 

Available Sizes:

1 oz., 4 oz.(14.7ml, 29.5 ml, 118.2 ml), 1 pint (.43 liter), 1.056 quart (1 liter), 1 gallon (3.78l).

Need empty 1 and 4 oz. fill bottles?  Click here. 

This rennet is Kosher approved and acceptable for vegetarian cheeses. 1/4 tsp. (1.2 ml) will coagulate 2 gal. (7.5l) of milk.   1.0 - 1.5 oz. (29-43.5 mls) / 1000 lbs of milk. Refer to Spec Sheet for industry usage rate.

Kosher Certified:  Kosher symbol is offered on a 1 pint size (under DCI STAR label) and in 1 Gallon sizes.

Kosher Certifications: available for:  Chymosin (ChyMax Extra) Liquid Rennet, and  Organic Vegetarian Liquid Rennet(Marzyme Liquid).


We repackage directly from the Kosher Certified container into smaller bottles, using strict procedures and a food grade sanitizer so there is no cross contamination.

Non Kosher rennet does not come into contact with any Kosher rennet or any repackaging equipment. 

Spec Sheet

Shipping included within the USA.

What Our Customers Say

  • 4
    Very good product

    Posted by Ghada on 1st May 2017

    Excellent service. Followed up with an email after I put the order with instruction. I didn't give this product a 5 star because that's the only one I tried so far, otherwise it is an excellent product and the service is excellent too. Thank you

  • 5
    Produit magique

    Posted by Unknown on 25th Apr 2017

    The Product is magical and the service is impeccable. Thanks

  • 5
    Great product

    Posted by Tara Estrada on 26th Dec 2016

    I will always order my cheese making products from quality products with a personal touch!

  • 5

    Posted by Chanie Salzer on 19th Dec 2016

    just made fresh mozzarella cheese - great flavor and texture

  • 5
    Best I've Found

    Posted by Dianna Moore on 28th Nov 2016

    This is the only rennet I will use from now on. I have better results with this than any other I have bought. Also the service is fast and accurate as well as the personnel are very helpful and friendly.

  • 5
    Thank you.

    Posted by Sharon D. on 18th Aug 2015

    You are truly amazing! I received my previous order of Rennet in record time, and have been making cheese almost daily. Thank you, thank you, thank you - for the wonderful service you perform! Sharon D. Brooklyn, NY

  • 5
    Cheese making a pleasure!

    Posted by MsEdFun on 18th Aug 2015

    I have numerous food allergies and decided to eliminate as many additives from my diet as possible. I started making my own cottage cheese, cream cheese, and butter with good results. Then, I decided to try my hand at mozzerella. I am happy to say that the rennet I needed, with kosher certification, came very quickly! I was extremely pleased with the service I received, and my cheese is amazing! Thanks you Cheesemaker!

  • 5
    First time making cheese: Success!

    Posted by Susan Z on 28th Jul 2015

    I needed a kosher rennet to try my hand at making cheese. This worked just fine! I appreciated the fast shipping and the choice of sizes. I can't compare it to anything else, but no problem with this. Yummy Mozzarela.

  • 5
    Soft Cheese

    Posted by remy pessah on 16th Jun 2014

    I tried the Chymosin (ChyMax Extra) Liquid Rennet to make soft cheese like Ricotta. Within less than two hours, the milk curdled. The cheese tasted GREAT!