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BrewDemon 3 Gallon Conical Fermenter

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BrewDemon 3 Gallon Conical Fermenter

SKU: U42332

Effortlessly brew better beer with the world’s first small batch conical fermenter! The BrewDemon 3 Gallon Amber Conical Fementer is great for fermenting 2 to 2.5 gallon batches of beer, wine, mead, or cider.

3 Gallon Clear Conical Fermenter   ($45.97)

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Effortlessly brew better beer with the world’s first small batch conical fermenter! The BrewDemon 3 Gallon Conical Fermenter is great for fermenting 2 to 2.5 gallon batches of beer, wine, mead, or cider.

The fermentor is made from heat tolerant and food grade PVC (Phthalate and BPA free) and ensures you receive the true flavors of your brew without the unwanted flavors. The included stick-on temperature strip makes certain that the temperature is correct and you’re in control of the fermentation! And the best part is, the functional design keeps that pesky trub firmly at that bottom so you can easily transfer your beer into your bottles right from the fermentor!

Slip on the BrewDemon Neoprene Sleeve and regulate the temperature of your wort during the winter months. Or place BrewDemon Chillz™ Ice Wraps with the sleeve to maintain the temperature during the hot summer months.

And when your lids start to wear, replace them with the BrewDemon Gasket Lids for an air-tight seal.

Fermenting the small batch way has never been easier!


  • Available in Amber or Clear

  • Brew volume of 2.5 gallons batch size

  • Seamless spigot hole with adjustable flow spigot

  • Stick-on temperature stripr

  • Versatile CO2 venting system

  • Large opening for easy access

  • Easy to transfer and bottle beer

  • Easy to clean
BrewDemon + Includes:

  • Patented 3-Gallon Conical Fermenter

  • Fermenter Base

  • Adjustable Flow Tap Assembly

  • Stick-on Temperature Strip

  • Venting Plug
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Details & Instructions

Additional Information

4.8 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Best inexpensive conical fermenter on the market
Easy to use and fairly easy to clean. The conical design of the BrewDemon helps you bottle clear beer. A really good value as well.
November 3, 2018
1 month ago
Personal Fermenter
I love this fermenter for small batches only I am going to drink!
October 22, 2018
2 months ago
I will be buying another BD 3 Gallon.
Easy to assemble and clean. Ran my first batch and it was everything I had been looking for. I did install a bung and a blowoff tube and used a couple of lids from gallon jugs positioned under the from two legs to place it on a small angle so the trub would be farther from the fill spout. This worked great as I only pulled a very small amount of beer before it ran clear of trub. Bottled direct from my BD and clean up was easy as the large opening is great for reaching all surfaces for cleaning. I will be buying a second for sure as space is an issue and I like not having to use a racking cane.
October 21, 2018
1 month ago
Very good value
Very efficient and convenient to use. I did drill a hole into the bottom of the cone and added a rubber plug to make ejecting trub a lot easier. Will probably buy another one for larger batches. This product is represents a very good value.
June 25, 2018
6 months ago
Always perfect
I've been using this for over 2 years now to brew hard cider and have never had a problem. The only thing you'll have to do is get some gasket material and cut yourself a gasket for the lid (it's not airtight). The way it's designed, you actually don't even need the gasket or an airlock--this little red plastic plug comes with it that fits inside the airlock hole and it'll raise up when the pressure gets too much, let the excess CO2 out, and then fall back down but I don't trust it to keep out the bugs so I use the gasket and airlock. I get exactly 15 - 740ML plastic bottles out of one batch and I fill it almost to the top. Little trick--put the front legs on 4 quarters and you'll be able to get another 8 oz. of apple juice in there leaving just enough airspace for the bung on the airlock not to come in contact with the brew.
I use slightly less than 3 gallons plus 2# of sugar dissolved in apple juice. At bottling time, I add 1 can of apple juice concentrate, and give it a stir. The carbonation level and clarity of the cider is perfect after 2 weeks of aging.
It looks good enough to keep it on the kitchen counter and going all the time. Once you get a system going, you'll be bottling every 2-3 weeks and never run out.
May 9, 2018
Customer Q&A
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Browse 5 questions Browse 5 questions and 8 answers
How much space at the bottom for trub capture ? I've usually got over an inch at the bottom of a 1 gal. carboy.
A shopper on Jul 15, 2017
What are the dimensions? Need to see if it fits in mini fridge small batch ferment temperature control cabinet.
A shopper on Aug 8, 2017
Does this kit come with a seal for the lid or do I have to buy that separately?
Daniel L on Jun 28, 2018
BEST ANSWER: It comes with a seal for the lid. I purchased additional seals just to have them on hand if needed. So far I've really liked this fermenter. It's easy to clean and light enough for me to carry when full.
Will Star san harm this fermenter? Instructions say to use a non acid sanitiser
A shopper on Sep 24, 2018
BEST ANSWER: I use StarSan. It doesn't eat through the fermenter. I have used the sanitizer several times will no major ill effect. It does seem to "fog" up the plastic, as in it seems to etch the surface so it is not as clear as it was new.
I don't find any 3 gallon beer or ale kits. Can I still just a 5-gallon kit or do I have to use 1/2 of the ingredients of the kit? Are there plans to market a 3-gallon simple beer kit?
A shopper on Dec 17, 2017
BEST ANSWER: Hello! We designed our 2 gallon kits to work with this fermenter. You do not want to use 3 gallon kits in a three gallon fermenter, as that could create a mess.

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