BrewBuilt Universal CoolStix™

BrewBuilt Universal CoolStix™

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Keep your fermentation temperature in check with the BrewBuilt Universal CoolStix for flat-lid fermenters! Just about any homebrew fermenter with a flat lid can be modified to work with the Universal CoolStix. We especially like it with the Speidel 60L Plastic Fermenter or a simple 6-gallon bucket fermenter. Temperature control is one the most important aspects of a healthy, happy fermentation. When your fermenting beer gets too hot, the yeast will likely impart off-flavors that can easily overwhelm the taste of your finished beer. The Universal CoolStix is a revolutionary cooling solution for up to 10 gallon batch fermentations -- it is easy to clean, easy to setup, and cools quickly and efficiently. To install, simply drill out a 1-3/8" hole into the lid of your fermenter for the CoolStix grommet, and a 13/32" hole for the thermowell grommet.

You will also need a cold water source to provide the cooling solution. For maintaining ale temperatures, a cooler or bucket of ice water is sufficient in most cases. For maintaining lager temperatures, we recommend the Icemaster 100 Glycol Chiller.

For a complete kit with submersible pump and temperature controller, check out the BrewBuilt Universal CoolStix with Pump Kit.


  • Universal CoolStix
  • Thermowell
  • Grommets
  • 2x Fitting Assemblies That Include:
    • 2x Push-In Fittings with 1/4" FPT
    • 2x Male Quick Disconnects with 1/4" MPT
    • 2x Female Quick Disconnects with 3/8" Barbs

You Will Also Need:

  • Submersible Pump
  • Temperature Controller
  • 3/8" ID Tubing
  • Ice Bath or Glycol Chiller

CoolStix Specs:

  • Diameter - 1"
  • Overall Length - 22¼"
  • Main Column Length - 20¼"
  • Width from CoolStix to Barb - 6½"
  • Made from 304 Stainless Steel


Item # GLY520
Shipping Eligible for Free Shipping Program
Availability California - Out Of Stock
Pennsylvania - In Stock
Weight 1 LBS

Community Q&A

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Why did you choose this?
MoreFlavor Store
An affordable way to cool a 7gal Brew Bucket from SS Brewtech
Gonzalo O on Jul 8, 2021
An affordable way to cool a 7gal Brew Bucket from SS Brewtech
Gonzalo O on Jul 8, 2021
Fermentation control for Summer brewing
David M on Mar 16, 2021
Fermentation control for Summer brewing
David M on Mar 16, 2021

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Excellent design
The CoolStix was just what i needed to control fermentation in my FastFerment concial.
September 18, 2019
over 2 years ago
Rated 5 out of 5
Works great
I drilled holes in my Fast Ferment. I am going through a lot of ice so I am going to try and incorporate some copper coils next time.
September 12, 2019
over 2 years ago