BrewBuilt CoolStix™ Complete Kit for 30L Speidel Fermenters

BrewBuilt CoolStix™ Complete Kit for 30L Speidel Fermenters

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Keep your fermentation temperature in check with the BrewBuilt CoolStix for Speidel 30L 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 CoolStix is a revolutionary cooling solution for homebrew fermentations. It is easy to clean, easy to setup, and cools quickly and efficiently.

The BrewBuilt CoolStix uses a submersible pump to circulate cooling solution and a digital temperatre controller to regulate flow. When the controller's temperature probe detects that your fermentation temp is getting too hot, it will power on the submersible pump to run ice water or glycol through the CoolStix. Once the temperature stabilizes, the controller will shut off the pump and stop circulation.

This kit includes all the necessary hardware to set up and start using the CoolStix with your Speidel 30L Plastic Fermenter (FE715).

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.


  • CoolStix for Speidel 30L
  • 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
  • Orange Speidel Lock Nut & Gasket
  • Submersible Pump (800 GPH)
  • Digital Temperature Controller
  • 2x 5 ft. Lengths of 3/8" ID Silicone Tubing

CoolStix Specs:

  • Diameter - 1/2"
  • Overall Length - 21½"
  • Mounting Disc to Bottom of CoolStix - 16½"
  • Mounting Disc to Bottom of Thermowell - 12"
  • Width from CoolStix toTop Barb - 6¼"
  • Width from CoolStix to Bottom Barb - 5½"
  • Made from 304 Stainless Steel


Item # GLY5160P
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - Out Of Stock
Weight 6 LBS

Community Q&A

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Browse 1 question Browse 1 question and 1 answer
Why did you choose this?
MoreFlavor Store
I have several 30L Speidel Fermenters and this product will work with my glycol chiller.
Joe Ormand on Nov 30, 2020
To control temp swings in my 30L Speidel Fermenter. Didnt want yet another freezer or fridge.
Christa P on Jun 15, 2020
I have several 30L Speidel Fermenters and this product will work with my glycol chiller.
Joe Ormand on Nov 30, 2020
Randy on Aug 20, 2020
To control temp swings in my 30L Speidel Fermenter. Didnt want yet another freezer or fridge.
Christa P on Jun 15, 2020
Better control over my beer
Matthew George on Apr 4, 2020
Jonathan Lizenby on Oct 25, 2019
I´m fermenting in 30L Speidel fermentor, need temp control.
Juan L on Oct 2, 2019
Nice chilling option for Speidel
Darin M on Aug 28, 2019
I need a way to temp com
Don F on Jul 16, 2019
Randy on Aug 20, 2020
Better control over my beer
Matthew George on Apr 4, 2020
Will this fit into the larger (60l) Speidels?
Stephen Boucher on Jul 12, 2019
BEST ANSWER: Hi Stephen - This particular CoolStix item is designed to be compatible with the 30L Speidels.

3.0 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 2 out of 5
Well built, doesn't cool well using ice water
Over 24 hours, was only able to drop temp a few degrees below the 65 degree ambient temp of my basement. This was with sometimes hourly replacement of ice in the cooler. I think I was expecting a bit too much using ice water. Perhaps it would work well to control ale temps if I had a glycol chiller. In that case I would likely just get a jacketed conical anyways.
May 25, 2021
Rated 2 out of 5
Not long enough
Does not reach very far in a 5 gallon batch of beer, so it couldn't reach lagering temperatures as desired. Temps hung at around 60F even when glycol chiller was set to 32F. Other conicals with cooling coils easily cool down to ~38F because they reach farther down in the fermenter.

It is still useful for helping to maintain a constant temperature, but again, not nearly as well as other conical fermenters with their cooling kits.
January 15, 2020
over 4 years ago
Response from MoreFlavor
Thank you so much for your feedback. We really appreciate the honesty and value great feedback like this as it helps us improve our products. Cheers!
May 24, 2020
Malcolm lieban
Rated 3 out of 5
Good Product That Could Be Better
CoolStix for Speidel fermenters works as advertised, keeping fermenting homebrew at a desired temperature. The included temperature controller is easy to use, just insert the probe into the CoolStix thermowell, set the temp, and plug in your chiller and attach coolant lines. While it does keep temperatures in check, do not expect this unit to rapidly chill your brew. The small surface area of the cylinder which contains coolant means it can take many hours to chill to pitching temperature. This is obviously not an issue if you can completely chill first in the boil kettle, but could be an issue when brewing lagers in the summer and ground water temps are too high to completely pre-chill the wort. A chiller coil with more surface area would be an improvement. A three-piece airlock works fine with this unit, but the stem of S-shaped airlocks is too small, making an airtight connection impossible without replacing the grommet. One last observation is that the push-in connectors which attach the coolant lines are quite fragile and break easily if you are not careful. MoreBeer did quickly send me 2 replacements when I broke 1 of the connectors. Great customer service, as always. Overall I am satisfied with the product and currently using 2 of them. Reasonably priced.
December 26, 2019
over 4 years ago
Rated 5 out of 5
Great tool for temp control over my Speidel Fermenter.
Very good made, easy to operate. I needed to cover vessel with Neoprene protector to improove temp control .
October 16, 2019
over 4 years ago