Catalyst Fermenter

Catalyst Fermenter

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The Catalyst represents the future of fermentation simplicity.  Easy to clean, transferless, this is a time-saving piece of equipment which you'll be surprised by the value of.  Boasting a rich set of features, the Catalyst Fermentation System was designed for homebrewers, while keeping true to many pro brewing principles.  Not only will the Catalyst Fermentation System save you time and energy, it will improve the quality of your beer!

The 45° Conical Fermentation Tank is made of a BPA free Medical Grade material, Tritan, which can withstand dishwasher cleaning and is incredibly resistant to scratches or other damage.  The entire vessel is designed to withstand boiling temperatures, so wort can be transferred straight from your kettle to fermenter without cooling if necessary. 

Thanks to the integrated dump valve, trub can be dumped, allowing for primary and secondary fermentations to take place in the same vessel.  This reduces transfers and touches, not only reducing oxygenation of your beer, but also reducing the chance of contamination.  Once fermentation is complete, you can bottle from the same system using the included tubing adapter for the dump valve.

Conical design forces yeast & trub down to the integrated harvester, reducing contact with your beer and improving flavor.  Yeast harvesting is accomplished using the integrated oversized 3" Butterfly Dump Valve & commonly available mason jars. 

When fermentation is complete, cleaning is even easier.  The Tritan material used for the conical resists buildup, and since the entire lid lifts off, cleaning the conical is as simple as a quick rinse & wipe down. 

We've found the Catalyst to be a solid piece of equipment that does the job of many pieces of brewery equipment.  If you're looking for a fermenter that covers you from brew day to bottling, this is the unit for you!


  • 6.5 Gal capacity
  • 45° Conical angle
  • Oversized 3" buttefly dump valve
  • Silicone Gasketed lid for perfect fermenter seal
  • Uses common mason jars as yeast harvester
  • All steps on the cold side of brewing in one vessel: Primary, Seconday, Yeast Harvesting, Bottling.
  • Medical Grade BPA Free conical made of Tritan.


  • 6.5 Gallon Tank with Lid
  • Stand (Base, 2 Legs, 2 Support Beams, 8 Screws)
  • 3” Proprietary Butterfly Valve
  • Bottling Attachment
  • Transfer Tubing
  • Tubing Clamp
  • Rubber Stopper
  • 16 Oz. Wide Mouth Mason Jar
  • Allen Wrench

Perfect your Catalyst System with the Catalyst Tank Cover.


Item # FE950
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 10LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 3 answers
Why did you choose this?
MoreFlavor Store
Concept is great.
Ray De S on Jun 18, 2019
Looking for a better way to ferment my beer.
Jim on Dec 28, 2018
Concept is great.
Ray De S on Jun 18, 2019
Combines many brewing functions into one easy to use item.
John S on May 13, 2019
Looking for a better way to ferment my beer.
Jim on Dec 28, 2018
Price and features
Brent H on Nov 27, 2018
Eric Palmer told me to. He is the beer Yoda.
david h on Nov 25, 2018
great reviews and looks like a great fermenter
bob costanza on Jun 11, 2018
Looks really good and good reviews
David A on May 1, 2018
like the design and the see through vessel
Juerg L on Mar 10, 2018
Combines many brewing functions into one easy to use item.
John S on May 13, 2019
Price and features
Brent H on Nov 27, 2018
I was told plans were in the works to add a stainless coil (similar to item FE863) for pumping glycol in order to use this item independent of a temp controlled fridge. Is this still in the works?
Jacob Burnham on Dec 4, 2018
Catalyst Fermentation System
Catalyst Fermentation System
Chiller Coil / Neoprene Jacket - 1 BBL Brite Tank
Chiller Coil / Neoprene Jacket - 1 BBL Brite Tank
BEST ANSWER: Hi Jacob - We have not heard anything about that, apologies.
What is the dimensions of the base? I would like to see if it'll fit in my fermentation chamber.
charles mears on Nov 26, 2018
BEST ANSWER: Hi Charles - The stand width is 17".
What is the height, with the airlock?
A.G. Stockstill on May 7, 2018
BEST ANSWER: Height of the unit is 26.25". Assume an airlock will add 3-4" to this.

4.5 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Catalyst Fermenter System a hit!
Have been using it since the day it arrived around a year ago. Have rep itched yeast for the first time in 15 years of home brewing thanks to this system. No complaints on my end. Easy to set up, easier to clean, love it!
November 26, 2018
1 year ago
Great product!
Makes the whole process easier! Definitely recommend this product!
November 12, 2018
11 months ago
Catalyst fermentation system
Started my first brew in the fermenter today, first impressions are that this is a good vessel to ferment your beer in. The butterfly valve seems to be a very good design, opens and closes positively. i love the mason jar feature for dumping trub and saving yeast. The triton plastic used on the container seems to be pretty bomb proof, much better than the plastics used on other fermenters. It also appears to be very easy to clean. My only concern would be the latches that hold the lid in place, they are a plastic hinge and only time will tell if they hold up, other than that I give it a big thumbs up
June 14, 2018
1 year ago
This is one of the best things I could have done to streamline my fermenting & bottling.
Try it, you will like it!
May 22, 2018
1 year ago
No regrests. Exceeded expectations
Sturdy construction but light weight. Air tight seal with a removable (and washable) rubber gasket.
Love being able to remove the trub and yeast! I let the wort settle for 45 minutes after transfer before pitching, and then remove a full mason jar of trub. My beer has improved in appearance and taste. I've also been capturing a large quantity of healthy yeast saving me money for the next batch.
1 minor quibble - wish it used a #10 bung which I could then drill for a thermowell, or if they included a thermowell, and sample port.
April 5, 2018
1 year ago
Things to watch
Not good for bottling from without re-racking especially if you dry hop.

Concerned about the lid fasteners, as they are attached only by the plastic. Don't know how long they will last with the bending to lock and unlock the lid.

Lid gasket is a pain to get back on if it comes off. Next time I may use a few drops of glue to put back on.
February 27, 2018
1 year ago
Buy the bigger one
Small leak when first loaded up with sanitizer but tightened up nicely. Larger size was not available when I ordered this one and that’s the one I would recommend over this one.
February 16, 2018
1 year ago
Great fermentor, only missing handles
Having the trub trap on an affordable conical fermenter is fantastic. Easy to disassemble and clean. Having the clear plastic to monitor fermentation is neat, too.

Transportation between where I brew to where it is fermenting is a slight issue and I assume would be for most people. Because of the positioning of the majority of liquid above the frame this makes the center of gravity higher than the frame, which is the natural carrying location. Awkward for anyone to move.
December 7, 2017
Great concemp although my recipes are for a larger volume.
I purchased this after using brewing buckets and find the volume too small for my recipes; I start with 7 gallons of water; I will need to adjust them down 1 gallon and should work fine. The seal is very good even when the bubbler gets plugged with foam. My current batch of Porter is setting at the 5 gallon mark and I need to clean the bubbler at least twice a day due to foaming and have dumped two pint jars using the trap with this recipe.

I will continue to use for smaller test batches; 6 gallons of water at flame on and quart jar on the trap.

If this product was increased to 8 gallons and had a domed lid I would definitely purchase the new model because I like all the features just not the current size.
September 15, 2017
Love it!
How do I like it? It was love at first batch. If it was a woman I would marry it.......'nuf said.
September 9, 2017