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Williams Warn BrewKeg25 - 25 L (6.6 Gallon) Conical Unitank Fermenter

Williams Warn BrewKeg25 - 25 L (6.6 Gallon) Conical Unitank Fermenter

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So the first thing to understand is that this is a Unitank - you will be fermenting and serving from the same vessel. The lid has an adjustable pressure relief that you can set to different pressures. More on that later while we first talk about why we are so high on these...  
The #1 reason we love the BrewKeg Unitanks is that they eliminate kegging day, which saves a bunch of time. The Brewkeg25 is perfect for a 5-gallon batch, and with the low profile, it still fits in our kegerator, which can be used for fermentation, as well as serving. When fermentation is done, crank down the temp, remove the yeast/trub collection ball and start immediately drinking because the beer is already carbonated. Since this is not the standard brewing process, stop and think that over - you don't need a separate night or hours on a weekend morning to clean and keg. You are going to save 2 or more hours with every batch! Plus, you are skipping the most oxidative step in brewing of going from your fermenter to your keg.  Yes, the one down side is that your fermenter is tied up as a keg but to many of us who really love brewing our own beer but are time challenged – the sacrifice is totally worth it.  
Another great time saving feature is that you can skip wort cooling and 'hot pack' these kegs, literally filling them after boil at around 190F. Stick them in your refrigerator, let them cool overnight, and pitch yeast the next day.  Hot packing is gaining a lot of traction and we suggest you google the term to learn more.  It’s been a standard practice in Australian homebrewing for years.   
Okay, so there is not a lot out there about fermenting under pressure. We've been doing it for almost a year now with the Fermentasaurus and the BrewKeg and if you want to make amazing lagers quickly you need to try it.  Fermenting under pressure reduces esters and even beers fermented between 65-80F have amazing German lager malt profiles.  Recently we fermented a beer under pressure with WLP001 at room temp and all the tasters thought it was lager yeast.  The pressure relief assembly, in the center of the lid, is the slickest out there and adjusts from no pressure up to 25psi. Leave it open for no pressure fermentations of ales and IPA's where you want the esters. Close it down to make amazing lagers under pressure, quickly.   


  • Made from stainless steel
  • Conical base
  • Extra large, easy to remove sediment ball
  • 25 psi working pressure & built in relief valve
  • 40 psi maximum pressure rating
  • Ferments clean and clear beer from 64 - 82 F
  • Beer is carbonated perfectly at the end of fermentation
  • Beer ready to enjoy sooner
  • Compact design fits in most kegerators
  • Eliminates kegging
  • Easy to clean and sanitize
  • Check "You Might Also Need" section below for available accessories


  • Height: 26 in.
  • Diameter: 15.5 in.
  • Actual Volume: 30L (7.92 gal)


Community Q&A

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Why did you choose this?
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I already own WW products and want to train people now.
Michael B on Jan 7, 2020
Brewing under pressure.
Jim V on Mar 29, 2019
I already own WW products and want to train people now.
Michael B on Jan 7, 2020
Ability to pressure ferment and carbonate naturally.
Jay Kirch on Dec 11, 2019
Brewing under pressure.
Jim V on Mar 29, 2019
Ability to pressure ferment and carbonate naturally.
Jay Kirch on Dec 11, 2019
The dimensions listed are the same as those for the BrewKeg10 (Item FE150, Height: 23.6 in. Diameter: 9.2 in). Misprint? What are the actual dimensions?
Carl Stevens on Aug 7, 2018
BEST ANSWER: 15.5in Diameter and 25.6in height. This allows the Brewkeg25 to fit inside a standard Kegerator
Does this come with the new two part sediment bottle to drain yeast and trub?
Jay Kirch on Nov 19, 2019
I like to dry hop during active fermentation. Is there a good way too hang a bag of hops in this fermenter?
Ryan Boughton on Dec 15, 2018
BEST ANSWER: Hi Ryan - You could tie a bag to the inner dip tube.

4.0 / 5.0
1 Review
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1 Star
Great, but not the one pictured
Fermenting under pressure is fantastic! I'm talking a 6% porter fermented around 78F done and carbonated in 3 days fantastic. I have 4 sessions in these so far and each beer finishis fast and off flavor free. You can transfer O2 free, capture CO2 for reuse, serve from the vessel etc. etc. I can't wait to try my Vienna Lager (Brewing Classic Styles recipe) which usually takes at least 30-40 days grain to glass. The only reason I dinged this a star is because the version shown has screw-off bottles, and the version delivered does not. I was planning to buy extra bottles to collect and store yeast the easy way and the current version is different. Still though, a wonderful product!!!!
January 12, 2020
3 months ago