Mason Jar Fermentation Kit

By Masontops

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Everything you need to make nutrient-rich, good-for-the-gut ferments. These mason jar fermenting lids screw directly to mason jars, keeping out air while also letting gases escape—so you don’t have to periodically burp the jar. The kit also includes instructions, recipes, glass weights, and even a vegetable tamper to help release moisture from veggies directly in the jar.

  • Materials: Pure soda-lime glass, silicone, acacia wood
  • Includes 4 waterless airlocks for wide-mouth mason jar fermentation in assorted colors (blue, purple, teal, red), 4 glass weights for wide mouth mason jars, 1 vegetable fermentation tamper, and a fermentation guide with recipes, instructions, and fermentation tips
  • Airlocks allow internal gases to escape, eliminating the risk of mold and need for daily monitoring during fermentation
  • Glass weights are made of non-iridized soda glass that are inert and ensure vegetables stay below the surface of the brine, eliminating exposure to oxygen which causes mold
  • Vegetable tamper is used for packing vegetables for fermentation and is made from all-natural, untreated acacia wood
  • Has enough supplies for 4 simultaneous ferments
  • All components made from food-safe and lead-free materials
  • Airlocks made from BPA- and phthalate-free food-grade silicone
  • Made in China
  • Dimensions: 12.1" x 9" x 4.6"
  • Weight: 3.75 lbs.
  • Clean weights and airlocks before each use to prevent contamination
  • Hand wash weights and airlocks with warm water and soap or clean in top rack of dishwasher. If using the dishwasher, avoid extreme heat settings (i.e., "steam")
  • Do not boil glass weights
  • Hand wash vegetable fermentation tamper with warm soapy water only
  • Occasionally oiling tamper will help to protect and condition the wood
  • Tamper not dishwasher safe and should never be allowed to stand in water as it may damage the wood

16 Reviews (5 out of 5 Grommets)

Sorted by Rating

What a world of fun!

9/25/2017 by Brenton

I am having so much fun with this kit. It is beautifuly designed box with all the equipment. I will have more to report after 3 weeks fo waiting for my:
Turnip sith Beet with garlic and peppercorns
Red Onions with Black pepper and garlic
Carrots with garlic Jalepanoes, and mustard seed.

So many possiblilties!
More > < Less


Easy Peasy

9/17/2017 by Cindy

I have tried other fermentation methods without success, but the Mason Jar Fermentation Kit made a fermenter out of me. Clear step-by-step instructions, with pictures, makes it easy for anyone to make delicious fermented vegetables. Impress your family and friends! Show your gut some homemade probiotic love.More > < Less


GREAT product. Need to order more!

9/6/2017 by Jimmy

Most convenient and effective product I've found for small-batch fermenting! Best dill pickles and pickled green tomatoes I've ever made--and the most convenient method!More > < Less


Can't wait to start!

8/17/2017 by Katherine

I agree with the other review by Kathleen. I am so eager to get started! I love several things about this product: The kit gives you great instructions; it provides the items you wouldn't know you need; it is packaged beautifully, so you can store everything properly; the shipping was amazingly fast; it arrived at the perfect time to get fresh vegetables from farm stands (I'll be doing an internet search to learn about all of the vegetables and possibly fruit that will work); there is NO COOKING involved! Now all I need to get started is sme great produce, mason jars, salt (kosher or non-iodized), and water; And, I already have the last two! I would definitely recommend filtering your water or buying spring water. A word of advice: Steer clear of the "drinking water" they sell. It's terrible. I am looking forward with great anticipation to enjoying wonderful, healthy vegetables over the coming winter!More > < Less


Great for Beginners

8/8/2017 by Kathleen

I wanted to start fermenting my own veggies for more probiotics (just found out I can't eat dairy and I hate taking pills). Didn't want a big cost or space investment.. this was so perfect! All you need are some Mason jars to start and the guide is really helpful. Going to get more pipes/pebbles so I can rotate 8 ferments (plus I know I'll give some away as gifts). Highly recommend to anyone interested in fermenting or healthy eating.More > < Less

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Masontops | Mason Jar Fermentation

About Masontops

Good for the Gut

Take the guesswork out of home fermentation. This mason jar fermenting lid creates the perfect anaerobic environment to make sauerkraut, pickles, kimchi, and other ferments.

There’s less daily maintenance, too, compared to other techniques. The lid keeps air out but is designed to let gases escape, so you don’t have to burp it every day. Plus, mason jars are pretty easy to get a hold of—you can even use ones you already own. Just screw the airlock lid onto jar and wait for the good bacteria to emerge.

Fermentation is good for you because of that bacteria. It can boost your gut health, strengthen your immunity, and improve your body's ability to absorb nutrients.

Whether you’re experienced or new to the craft, Masontops’ kit equips you with everything you need (instructions, recipes, glass weights, and even a vegetable tamper to help release the veggie’s brine directly in the jar).

Make room on your counter for your very own batches of fermented goodness. Your gut will thank you.