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Brewer Cap
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Cloth Cover for Kombucha Brewing Vessels

Tired of wrestling with rubber bands? Frustrated by fruit flies getting into your brew? Then check out the Kombucha Kamp Brewer Cap!  We invented these stylish yet functional caps with grippy elastic to hold the cap snugly to the brewer. This prevents fruit flies, dust or other debris from getting in your brew yet makes topping off your Continuous Brew (or any other ferment) a breeze!

Comes in a variety of fun colors. Want to mix and match? Check out the 3 pack of Brewer Caps.



  • Stretchy cotton designed to fit perfectly on KK's Continuous Brew Crocks

  • Fits ANY wide mouth vessel (5.75" - 8" diameter opening)

  • Cap is frilled for designer touch

  • Made in the USA


Machine wash cold. Hang dry. Handmade in the USA.



Customer Reviews

Reviewed by Cheryl, 07/11/2016

I bought this brewer caps after using a towel and rubber bands. Rubber bands are always breaking of slide the towel up off my crock. These caps are fantastic they grip the brewer and never ever move unless you take it off. I love them will definitely order more.

Reviewed by Pregailia, 07/03/2016

This cover is great! It was the only cover that would stay on my continuous brewing container. I tried cloth with large rubber band, but it kept slipping off because of the configuration of the neck - nothing for it to grab to. (Pregailia, Birmingham, AL)

Reviewed by Nadia Lalani, 07/02/2016

i love this cap its easier than tying cloth around.

Reviewed by Jason F (Olney MD), 06/21/2016

The brew cap for the continuous brew set-up is awesome! It fits perfectly and gives the set-up a finished look. It is looks much better than paper towels and a rubber band top. I like is so much I plan on ordering another for the second continuous brew I am about to start.

Reviewed by Amy Harbison (Cocoa, FL), 06/15/2016

Worth every penny! We always have fresh produce in the kitchen and fruit flies are magnetized to kombucha. These caps are fruit fly proof. They can knock but they can't get in!

Reviewed by SueB (Stillwater MN), 04/19/2016

I was sceptical this would work on the sloped top of the crock so I kept comparing pictures and the crocks looked like mine. Reviewers said it worked and they loved it so I got one. LOVE IT! It clings like glue. Fruit fly season is approaching and you have saved me! Thank you.

Reviewed by Sheri Lossing, 04/17/2016

I absolutely love my brew caps! Every other alternative I tried was not only annoying and impractical, but also unattractive. Okay... attractive is optional, but these little caps are neat, practical, and yes -- attractive. Everything I needed and wanted. Love it!

Reviewed by Larisa Glenn Eugene, OR, 04/16/2016

This cap cover is perfect to keep out fruit flies, ants, ect. It fits perfectly. I love that it is machine washable. I ordered two. I use it for my continuous brew system. Far superior to a dish towel & rubber band. I love mine, and that I could pick a color!

Reviewed by Pamela Gibson (Cedar Falls IA), 03/21/2016

These caps are a must-have for brewing! I received one with my continuous brewing package, and fell in love with them! A cloth and rubberband works fine, but I’m forever shooting the rubberband across the room when I remove the cloth. These go on and off so easy, and are much more attractive and don’t look as messy. I’ve ordered them for all my brewers, and the Jar Caps work great on 1 gallon containers and my scoby hotel. Highly recommend them, they’re worth the money!

Reviewed by Laura B (Williamsburg, VA), 03/07/2016

With all of the nasty tales of cheesecloth and fruit flies, poor airflow causing mold, etc.. I wanted to be absolutely sure that my booch was protected from the world. This keeps me sane knowing nothing bad is going on. :)

Reviewed by Natalie, Austin TX, 02/23/2016

These little caps are adorable. It beats the paper towel/rubber band combo that I've been using for a while. I'm a huge fan of Komucha Kamp. I've bought scobies, water kefir, a brewer and other misc. items and have been very pleased not just with the products, but with the customer service as well.

Reviewed by Lori Grace (Salem, Missouri), 01/16/2016

Had to have this cute and functional cap as nothing else stays on like these do and they really top off the CB crock for the "total experience"! I just ordered one for my sister!

Reviewed by Kristi (WA), 12/28/2015

It looks much nicer than the towel and rubber band combo I used before! Fits perfectly. The mesh size is important during the fruit fly season to protect your brew.

Reviewed by Leigh, 12/05/2015

Love this brewer cap!  So much better than a rubber band and cloth which I never felt like I could get on securely.  I was always worried the rubber band was gonna pop right off!  Not anymore.  This cap feels very secure so no more worries!  Worth every penny!

Reviewed by Mellissa Mikara (DFW, TX), 11/05/2015

Do yourself a favor and get one of these great caps. So much easier than alternative covers with rubber bands! No fruit flies in the booch with this cap.

Reviewed by Connie (Bluffton IN), 09/17/2015

I have bought the continuous brewer. I bought the red cover for it. It goes well in my kitchen. A great place to get all you supplies.

Reviewed by Allyson, 06/01/2015

Perfect fit for my 2G glass mason brewing jar! I was hesitant to purchase because it seemed like a frivolous purchase but it ended up being awesome. It definitely makes the last step of brewing that much easier and allows me to peek in on my brew with no fuss. If you're on the fence about picking one up i say do it! It definitely WILL be used :)

Reviewed by Meghan, 02/02/2015

Perfect! Neat, sweet, petite! Fits my stoneware perfectly.

Reviewed by SueO from Vermont, 01/23/2015

I have a beautiful water crock that is grey with dark blue stripes that I am using to brew. The cover doesn't allow air to pass, and I wanted something that looked nice instead of the dish towel & rubber band. I got the dark blue one and it looks great. The mouth of the crock is 8", which is at the high end of what this is supposed to fit, and fit it does! The elastic is stretched to the limit, but does not seem overstretched. It look great!

Reviewed by Brenda Elrod, 11/22/2014

I ordered a cover for my Kombucha vessel and received the wrong one. You were so speedy in sending out the correct one and even told me to keep the incorrect one for future use. Thanks for getting this to me and in such a very short time.

Reviewed by Earl (Columbia, MD), 11/21/2014

The cover cap is perfect for the jar I am using. It arrived faster that I had expected.

Reviewed by Mark Schenkman (Arlington VA), 07/19/2014

The brewer cap is a great practical way to accessorize your brew vessel. No more rubber bands and cloth or paper that really don't fit. Also looks great as the porcelain vessel is out in the open I want it to look nice. Might have to pick up a 2nd one so I can wash this one at some point

Reviewed by Vivienne L. Woodstock, NB, Canada, 06/07/2014

I love my brewer cap. Aside from keeping my kombucha so clean, it makes the porcelain container look extremely attractive. I am also very glad that I accepted your offer for the matching tee. Friends who have visited have been intrigued by the elegant appearance of it and subsequently wanted to know all about it.

Reviewed by Lisa (DS, LA), 06/02/2014

What a handy lil cap for my CB vessel! Easy to handle, and functionality is perfect! The first one I received with my CB Deluxe kit had a defect, but Hannah replaced it in lightening speed!

Reviewed by Crystal (Holland, MA), 04/30/2014

This cap is soooooooooo much easier and more convenient than a cotton cloth and rubberband AND it looks a lot prettier! I will def have to order in more colors.

Reviewed by Ethan Hicks (Edmond, OK), 04/28/2014

I purchased the purple brewer cap for my mom. She loves it and it fits perfectly on her crock. I am always happy with my purchases. I will definitely be back!

Reviewed by Sharon Gordanier, 04/20/2014

Love the cap, Great fit and easy to use, Thank you
Will be ordering another one

Reviewed by Lisa Verette (Denham Springs,LA), 04/11/2014

I received the new cap today, and so far so good! Thank you so very much for the replacement!

I was so thrilled today to be able to see the beautiful SCOBYs when I replaced the cap. I had been wanting to take a peek, but I kept reminding myself "patience grasshopper" :)

Keep calm & brew on!

Reviewed by Angie C., 03/24/2014

These caps are so convenient--and they look great! I will be ordering more!

Reviewed by Melanie (NY), 03/12/2014

I ordered this to alternate with my other brewer cap so I can always have a clean one for my continuous brew vessel. Works very well - so easy!

Reviewed by Linda S (Upland, CA), 01/20/2014

All the products I ordered were great and I am satified with your companys products. Will order again,you provide a wealth of knowledge.

Reviewed by Judi P. (Glendale, CA), 09/28/2013

LOVE this cap!! So much easier than the cloth & rubber band!!

Reviewed by Eunice Price, 09/24/2013

I love the cap. The grippy elastic is a snug fit and the deep burgundy color is very nice. Much better than napkins, towels and a rubber band.
(Eunice Price, Slidell, LA)

Reviewed by Carol Hazard (Kirksville, MO), 06/20/2013

This is a handy addition to my brewing set-up. It is elasticized so it fits snugly to keep out the fruit flies.In fact, I like it so much I'm planning to purchase another one.

Reviewed by Linda - Virginia Beach, VA, 06/05/2013

I was using coffee filters to cover my gallon jar but now with this really cool reusable cap I will be able to cut cost a little more. Can't wait to buy another one for my CB. Thanks for the great product!

Reviewed by Danielle Denhardt, 05/31/2013

I love this little cap! It's a big improvement over the cloth-and-rubber band method (not that there's anything wrong with that) because you don't have to worry about losing the rubber band or having it break. Plus, it's super cute!

Reviewed by Summer T. (Santa Barbara, CA), 05/17/2013

I was using a piece of cloth, duct tape, and a rubber band to cover my brewing vessel before I decided to buy the cap. I am so glad I made this purchase! It is well made and extremely useful. It does EVERYTHING it is supposed to do and was definitely money well spent. And it is so much easier than fussing with the rubber band every time you need to access your brew!

Reviewed by NicoleM, 03/14/2013

The cover is great. So much better than using a paper towel! In fact, my Scoby multiplied, so I need to buy another one.

Reviewed by Barbara (Greenwich, NY), 02/11/2013

I bought this as the perfect gift for a friend I turned on to Kombucha! After sharing my SCOBY (from my SCOBY Hotel)as well as the knowledge I've gained from Kombucha Kamp, she's now a KombuchaMama too!

Reviewed by Toni Parker, CO, 01/18/2013

I love my cute cap. So much easier than using the rubberbands, and stylish! :)

Reviewed by Barbara (Greenwich, NY), 01/05/2013

Forget the rubberband-thing ... this is a must-have!

Reviewed by Molly, 10/18/2012

I really love this cap. I had a TERRIBLE problem with fruit flies until we got this cap. If you do kombucha, this is a must. it fits snugly and we haven't had any problems with flies in our booch since.

Reviewed by NWHD, 05/29/2012

Just as described. Am so glad I just bought it instead of taking the time to make it!

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