• FermZilla 27 Liter Conical Fermenter
  • Shown with optional Pressure Kit C77 installed

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Item #: L08
Our Price: $129.99
Free Keg Lube
In Stock, Will Ship On 02/19/2020.
  FermZilla Spunding Valve Kit (+ $39.99)
  FermZilla 27 Liter Insulated Jacket (+ $39.99)
  FermZilla Yeast Collection Jar (+ $14.99)
  FermZilla Handle (+ $6.99)


With the FermZilla you have the many of the benefits of a much more expensive stainless conical fermenter but with the additional benefit of being able to see the fermentation process in action and also ferment at pressures up to 30 PSI. See the videos and the instructions below for more details.

Included In The Box:
1 x Fermzilla Tank with Butterfly Dump Valve Parts (Pre-Assembled & Attached)
1 x Reinforced  Stainless Steel Stand 
1 x Top Lid with Red PRV  (35psi) now upgraded with a thicker O ring for a better seal
1 x Top Lid Screw Cap 1 x 1000mL Collection Container & Lid* [2 x Male Cap Threads]
1 x KegLand Adjustable Easy Opening Tool
1 x Premium 3 Piece Airlock
1 x Approximate Graduations Sticker
1 x Strip Stick On Thermometer  
1 x Grommet Bottle Cap (Airlock Port)
1 x Bag Spare Seals 
1 x Keg Lube (item D52, for preserving O rings)

 Available options include:
  Spunding Valve Kit
 Zippered Insulated Jacket
 Extra Collection Jar

IMPORTANT NOTICE: When using this vessel under pressure. You must perform a water pressure check to ensure your connections are leak proof. To do this. Fill your FermZilla up with water, then apply a minimum of 15psi pressure to the vessel.  Occasionally these units may come with some small indentations/dimples/dents from shipping, this is just a reality of shipping large blow-moulded thin-walled vessels. But dont panic, these fermenters are designed to endure minor deformations such as this.  All small dents will push out and settle with use and positive pressure and are only an issue and warrant replacement in the rare event they start to show white stress patterns.

Maximum temperature is 130 degrees F., if you pour boiling or near boiling wort into this unit, you will ruin it, and heat damage is not covered by warranty.

Click HERE to download the instructions in pdf format.

Click HERE to download the dimensions in pdf format.


Average Rating:
(based on 4 reviews)

Showing 4 Reviews:

Review and Rate this Item
by Joe Gorman
on 12/17/2019
from Granite Bay ca
Just used once and could not do the dry hop because I couldn't get the bowl off. The good is contingent on next brew that allows me to get the bowl off. I also feel that I couldn't completely shut the valve. I was reluctant to use to much pressure.

William's Responds: The valve closes all the way but you have to use pressure. It is very sturdy so don't worry about over pressing the handle.
by Steve R
on 12/3/2019
from Arcata
Works as advertised but has quirks
Quite happy after one batch:

Get the pressure kit. Move beer from Fermzilla to keg using a hose with beer connectors on both ends, pressurizing Fermzilla a bit. (You have to vent the keg.) I got all the beer with almost no sediment. 

Unstrained pellet hops settled out in the collection jar, which was easy to clean and replace. To harvest yeast you might want to remove hops, which requires a small strainer or a funnel. The Williams funnel E37 could work but its strainer clogs too quickly.

My pressure kit came with metal fittings that accept beer- and gas-side connectors, though Williams tells me the manufacturer is switching to plastic fittings. I had to use a wrench to tighten these enough, even though the instructions say to finger-tighten. 

Instructions are not well organized or written. Example: the fermenter includes a handy sticker with volumetric marks (3, 4, 5 gals, etc.), but it's not clear whether these volumes are with or without the collection jar. (They are without.)
by Josh
on 11/18/2019
from IL
Best fermenter outside of SS???
Best fermenter outside of bank busting stainless steel options?
Eeeeeyup! it checks every box and does so without emptying your bank account.

Conical design. Check.
Large trub collection jar. Check.
Large butterfly valve opening (=no clogging. see fastferment). Check.
Enough headroom for foamy 5 gallon ales (=no blow off tube. see catalyst). Check.
Ferment under pressure. Check.
Transfer to keg in closed loop. Check.

The only downside is... you're going to want to buy another one? But at this price point maybe that's not so bad?

--Full disclosure i had an issue with my lid losing pressure, but, Williams got it taken care of immediately on first contact, no hoops to jump through. 
Amazing product. Stellar seller. Absolutely recommend.
by John S,
on 10/26/2019
from WA, State
Fermzilla 27 Lit
This is the 2nd won I bought, and as I have said these are a game changer!  I'm pressure fermenting a Citronic Tangerine IPA and we will see, I did a West coast IPA, but I still lost my aroma hop aroma and flavor?  But this is the 1st batch under pressure?  This batch I put whole hops home grown 2.40 oz. Columbus and Mandarina Bavaria 1 oz. pellets for dry hop, I tried to inject them through the collection jar primed w/ co2, but they kind of got stuck in butterfly port, anyway some got through, we will see?  These are nice though,Dr. Hans puts them through  the lid?
Review and Rate this Item
2/10/2020 12:42:18 AM
The PDF for the dimensions doesn’t reference how wide it is. What is the width in inches? Want to make sure it fits in my chamber.
The stand is 15.25" wide at its base, and 13.5" wide at its top. So you will need 15.25" of width to fit the unit.
terry vincent
12/7/2019 4:20:50 PM
A question from the less experienced, why pressurize the fermenter?
Many reasons, ferments under pressure can produce a smoother flavor and reduce esters. When done fermenting, the beer is carbonated.  Probably best to use a search engine and see a more thorough explanation.
11/21/2019 6:21:26 PM
One of the videos indicates the handles are a part sold separately. Is this the case?
Yes, we will have the handles in by November 25th. The part number is C69
9/30/2019 2:51:18 PM
Could you guys make something like this out of glass instead of plastic?
We do not think it is possible, unless it did not hold pressure.
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