Home Brewing Fermentation Cooler - Beer Brewing Temperature Control, Keg Cooler, Fermentation Brewing Bag. The Original - Cool Brewing Fermentation Cooler.
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Availability:
11 left in stock
Arrives
Nov 6 – Nov 24
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Features
- CREATE IDEAL FERMENTATION TEMPERATURES: Controlling your fermentation temperatures is a CRITICAL step to making great beer! Simply use your cooler with frozen 2 liters or ice packs and NEVER lose a batch of beer to high temps again! We do offer a BUNDLE with Cooler Shock Freeze Packs if you would like that method. Check it out!
- EASY TO USE AND MAINTAIN TEMPS: Normal Ale ferm. range is 68 to 72 deg. 2 frozen, 2-liter bottles result in a 10 deg. F drop below ambient. 3 frozen 2-liter has a 15 degree F drop. This is scalable up to a 30 degree F drop below room temp!
- VERSATILE: Is compatible with buckets, fermenters and carboys up to 8 gallons! ALSO large enough for 12 barrels kegs and can hold up to 4, five gallon corny kegs for your party serving needs! (Kegs not included)SPACE SAVING: Limited space? No problem! Collapse when done! Even brew in a closet! 100% waterproof and insulated. No more messy blowouts.
- SPACE SAVING: Limited space? No problem! Collapse when done! Even brew in a closet! 100% waterproof and insulated. No more messy blowouts.
- HASSLE FREE guarantee! If you have any questions, please do not hesitate to contact us. We pride ourselves on our customer service! Every Cool Brewing purchase also supports our Cooler Giving Campaign; helping people in need, one cooler at a time!
Description
Did high fermentation temperatures ruin your beer? Have no fear! To keep those temperatures just right, simply change your ice packs once each night! Our cooler is effective and affordable and great for serving kegs too! It would make a great gift for your favorite brewer and they would for sure thank you! Limited space? No problem! Collapse when done! Even brew in a closet! 100% waterproof and insulated. No more messy blowouts. Great gift! Dimensions are 26.50 x 21.50 x 21.50 in. Is compatible with buckets, fermenters and carboys up to 8 gallons! ALSO large enough for ½ barrels kegs and can hold up to 4, five gallon corny kegs for your party serving needs! (Kegs not included) Normal Ale ferm. range is 68 to 72 deg. 2 frozen, 2-liter bottles result in a 10 deg. F drop below ambient. 3 frozen 2-liter has a 15 degree F drop. This is scalable up to a 30 degree F drop below room temp!
Size: 5 gallons
Brand: Cool Brewing
Color: Black
Item Volume: 5 gallons
Number of Items: 1
Brand Name: Cool Brewing
Number of Items: 1
Unit Count: 1 Count
UPC: 640522834945
Global Trade Identification Number: 45
Manufacturer: Home Brew Ohio
Item Weight: 4 pounds
Model Number: 5B-YTCW-X9LG
Manufacturer Part Number: 5B-YTCW-X9LG
Size: 5 gallons
Volume: 5 gallons
Color: Black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 6 – Nov 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This brew bag is excellent. This is a 100% improvement on my old swamp cooling setup is is a viable, low cost alternative to a keezer. I just put a Belgian tripel in the fermenter and dropped my 7 gallon wide mouth fermenter in 6 days ago. The house is currently at 75 (January in Florida) and the bag is very easy to regulate. I started with a frozen 2 liter bottle of water for the first three days to keep the temp at 64 with plans on raising the temp into the 70s the final week. I had to switch to smaller freezer packs to keep the temp from dropping to 62 or below following initial fermentation. The great thing is that this bag insulates well enough to prevent big temperature swings and gives you time to make small adjustments. I change the ice bottles/packs about every 24 hours. This time of year I am confident that I could easily brew in the 50s and may attempt my first lager in this bag! I anticipate buying another one of these bags to keep the fermenters rotating through. I bought this because I didn't have the money and space for a dedicated beer fridge and was tired of the limited control of the swamp cooler. The only downside to this is that the top of the bag hits the airlock but with some care this is really a non issue. The bag comes with a shoulder carrying strap and I have carried the whole thing across the house with 5 gallons of beer in it with little trouble. Well worth the investment and very pleased with the ability to effectively control the temperature.
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Reviewed in the United States on February 4, 2017 by Anchorpoint
It really helps keep the fermentation temperatures where they need to be.
Reviewed in the United States on August 7, 2026 by David
Used for fermenting beer and works great
Reviewed in the United States on May 17, 2026 by Clyde Broussard
With just x1 4lb ice pack I can keep 5 gallons of beer at about 66-70° (ambient temp around 78°) I do not doubt having multiple ice packs can keep beer at a cold temp while fermenting (if brewing lagers) It fits my 6gal glass carboy with the air lock on top no problem with plenty of space for a larger vessel. Will be brewing lager soon and I will update how well it keeps colder temps compared to ambient temperature. Update: 12/16/24 I absolutely love this product. It’s a great tool to keep your beer at whatever temperature you desire. The colder I want the beer, the more ice packs (4lb Kona ice packs) I add. I successfully kept a lager cold enough throughout fermentation with absolute ease! Highly recommend for anyone who wants to keep fermenting beer cold but doesn’t want to spend money on expensive equipment.
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Reviewed in the United States on August 12, 2024 by Adam Welsh
I live in a 1 bedroom apartment and I have the space for a few carboys, but the yeast won't like the temperature since it is usually about 75 in here. It fits my 6.5 gallon glass carboy no problem and I am reusing the 64 oz apple juice bottles to keep my cider cool. It also has no problem with keeping it 15 degrees below ambient temperature when I change the bottles once a day, and I could wrap in in a good blanket if I wanted better insulation. The 2 zippers on the top move really easy and feel good. The white waterproof plastic on the inside looks like the same stuff that is in all of the lunchbox coolers and should be easy to clean. I estimate the usable space inside is at least 20" wide and 23" tall. It is roughly 23" to the zipper and should be able to fit a little taller if the top flexes out like a tent. I really like the way it looks.
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Reviewed in the United States on November 9, 2017 by lExx17
I needed a way to keep my ales at or near 65 degrees during fermentation. This insulated bag is more than big enough for my 7 gallon PET fermenter. It has a wide mouth, is rigid enough to stand on its own, and keeps a fermenting batch right around 66 degrees using large freezer gel packs, as long as you change them about every 12 hours or so. After the ferment, the gel packs hold the temps for about 24 hours. I was surprised to find a zipper in the middle of the lid -- perfect for tall fermenters or if you want to keep your corny kegs cold at a picnic, you can run your tubing through it while keeping all the cold zipped up inside the lid. I wonder now why I waited so long to get one of these.
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Reviewed in the United States on July 13, 2024 by TechnoFreezer
When I first saw this, I thought this was going to be a gimmicky item. I also thought I would be packing it with tons of ice. But no... it works much better than I could have imagined it would. Infact you almost only need one 2 liter bottle of ice... but right now I am running it with two 2 liter bottles of ice and it is holding at about 67 degrees. Very awesome and seems that if I just add more ice I could easily be doing lagers. My only complaint or dislike about this product is that it rests on top of the airlock. But that does not seem to affect anything. I still have a nice thick layer of foam on top and seems to be fermenting just fine. I highly recommend this product for anyone who brew's out of their apartment and doesn't really have the space for another fridge. Update - 10/13/15 I now have 3 of these and still love them… probably the only problem I have had in the use of these is that when water collects in the bottom I tend to get some pink mold. But it is easily cleaned out. I still highly recommend this product.
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Reviewed in the United States on October 22, 2013 by bikingman82
This thing doesn't even need any more positive reviews but I'm inspired to give one anyway. I couldn't be happier with this product. The first thing I used it for was a lager and it worked great. Water in my apartment at room temperature in the spring/summer is about 80F or more. With four two liters of ice, changed out first thing in the morning and last thing at night, I was able to keep it in the 48F-52F sweet spot with perfect consistency. Even when the weather got up to 90F, five to six 2Ls would maintain lager temps. This cooler should really be the new standard for everyone who doesn't have a dedicated fridge. I went from having no temperature control to having perfect temperature control. Well worth it. The only downside is I suppose not everyone has room in the fridge to rotate eight 2Ls in and out four at a time, as I've done making lager - but of course for an ale you'll need fewer so that would be less of an issue.
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Reviewed in the United States on June 9, 2015 by A reader