Brewing
Keep your brews cold & costs low.
Build an affordable walk-in beer cooler with a CoolBot Pro and standard A/C.
The Smart Choice for Breweries & Taprooms
Traditional walk-in coolers can be expensive to install and maintain. With CoolBot, you can create a cost-effective walk-in beer cooler using a standard air conditioner. Whether you’re fermenting, lagering, or keeping your beer at the perfect serving temperature, a CoolBot-powered cooler helps you save on upfront costs, energy bills, and maintenance.
Why Brewers Choose CoolBot for Their Walk-In Coolers
Lower installation costs compared to traditional refrigeration.
Used by bars, pubs, and restaurants to store and serve cold beer.
DIY Cooling Made Easy
Fermenting & Lagering: Maintain the Perfect Temperature
Brewers rely on precise temperature control for fermentation and lagering. Here’s how a CoolBot walk-in cooler can support your brewing process:
Fermenting
- Many brewers ferment at 50°F—easily achievable with CoolBot.
Lagering
For brewers who needed to lager their beer at 34°F, we have a few suggestions:
1. Insulate all surfaces (ceiling, walls, floor) to at least an R value of 25. Rigid foam paneling is the best insulation material.
2. Use plenty of caulk and spray foam to seal every gap, crack and seam to prevent air leakages.
3. Install a well-sealed door gasket.
4. Try to limit door opening to less than 4 times per hour.
5. If you’re still having a hard time reaching 34°F consistently, add another A/C unit and CoolBot to increase your cooling power. This will also add some redundancy to the system in the event of an accident.
Fermenting and Lagering
Some of our brewing customers need the ability to switch between higher and lower temperatures (35°F to 60°F) for their brewing process, so they need to have larger A/C units to get down to these low temperatures. The issue is that once the cooler reaches the low temperature (35°F), it becomes difficult to increase the temperature in the cooler to the high temperature (60°F).
For these cases, we recommend a pass-through thermostat. You can plug the A/C through the pass through thermostat, so that as soon as the room hits the set temperature on the CoolBot, the power is shut off to the A/C. Leave the CoolBot plugged in as usual. If you opt for this set up, you must purchase an A/C that can automatically restart after a power failure (some automatically reset to 70F). We can help you with any issues on this – just give us a call.
See IT IN ACTION
Watch The Owner of The Rhinehouse Bar in Ithaca, NY Talk About How His CoolBot Cooler Cost Him Only $2k To Build.
Additional Set-Up Tips for Your Beer Cooler
Running Taps
Keep your tap room at the perfect temperature—cold and refreshing but not too frothy.
Insulate around tap lines using spray foam or foam pipe insulation to maintain efficiency.
Flooring Considerations
If you wheel kegs into your cooler, a concrete floor or plywood-coated insulation helps distribute weight.
Using keg racks with pointed ends? Add extra plywood or metal underneath to prevent damage.
Need more guidance? Explore our Construction Guide and A/C Selection Guide for step-by-step assistance.
Ready To Get Started?
Whether you’re building your own or purchasing a CoolBot turnkey walk-in we’re here to help you find the right solution.
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