Grainfather GC2 Glycol Chiller

Grainfather GC2 Glycol Chiller & Cooling Connection Kit

Grainfather Glycol Chiller GC2

Take charge of your brewing process with the Grainfather GC2 Glycol Chiller. This Grainfather Glycol Chiller gives you the power and precision to manage the temperature of your fermentation process with confidence and ease. The true beauty of the Grainfather GC2 lies in its ability to control and power not just one, but up to two fermenters simultaneously, each following different temperatures and fermentation schedules.

Compatibility with Grainfather S SERIES and Other Fermenters

The Grainfather GC2 Glycol Chiller is designed to work seamlessly with the GCA Glycol Chiller Adapter, allowing you to connect it to the Grainfather S SERIES range of fermenters or most other fermenters. Its sleek and compact design features an LED control display, making it easy to monitor and adjust temperature settings.

Grainfather App Compatibility

One of the main advantages of the GC2 is its compatibility with the Grainfather App. When connected to a Grainfather G SERIES fermenter or the GCA, you can manage your fermentation from anywhere via Wi-Fi. This makes it easy to monitor your brewing process and make adjustments as needed, even if you're not physically present.

Propylene Glycol Mixture

The Grainfather Glycol Chiller uses a mixture of water and propylene glycol in a 2:1 ratio to maintain proper temperature control and prevent freezing or overheating. Propylene glycol is a food-grade antifreeze commonly used in the food and beverage industry to regulate temperatures. When mixed with water, it has a lower freezing point and higher boiling point than water alone, providing more stable temperature control. This means that even in cold temperatures, the coolant will not freeze, which can damage the chiller and the equipment it's connected to. Additionally, glycol has a higher boiling point than water, which allows the chiller to operate at higher temperatures without the coolant boiling off. This provides greater flexibility and stability in temperature control for your brewing.

Plug-and-Play System

Compared to a DIY glycol chiller, the GC2 offers several benefits. For starters, it's a plug-and-play system, which means you don't need to spend time building and configuring your own chiller. This can save you a lot of time and effort, especially if you're new to homebrewing or don't have a lot of experience with DIY projects.

Temperature Control

When it comes to the minimum temperature for the Grainfather glycol chiller, it's important to note that it can reach temperatures as low as -4°C. This level of temperature control gives you the ability to ferment even lagers as well as cold crash your beer resulting in a clearer, more polished final product.

Features of the Grainfather Glycol Chiller

  • Control and power up to two fermenters with different temperatures and schedules
  • Compatible with Grainfather S SERIES range of fermenters or most other fermenters with the GCA Glycol Chiller Adapter
  • Sleek and compact design with LED control display
  • Plug-and-play system for easy setup and use
  • Ability to reach temperatures as low as -4°C for lager fermentation and cold crashing
  • Compatible with the Grainfather App for remote monitoring and adjustment of temperature settings via Wi-Fi
  • Backed by a 3-year warranty

Included Items:

  • GC2 Glycol Chiller
  • Propylene glycol*
  • 2 x cooling connection couplers*
  • 2 x 2 m insulated hoses*
  • Glycol funnel
  • Silicone tubing for priming pump

*Packed separately


  • Size: 583 x 320 x 363 mm (23 x 12.6 x 14.6”)
  • Weight: 19.5 kg
  • Capacity: 3 L glycol tank
  • Power: 180W, 220V
  • Connectivity: None*

*Wi-Fi control is available when used with G SERIES fermenters or the GCA

Polite Notice

  • Only available for Mainland UK shipping.
  • Due to the volumetric size of the product we ship safely on a pallet.
  • Expect delivery is 1-3 days from the time of palletisation, not the order placement.
  • Please ensure that there is someone at the shipping address to receive your order.
  • For further clarification do not hesitate to contact us on 01752 660382 or

5.00/5 - 1 review

Jul 3, 2023
Working well and great delivery experience
Easy to set up. Works very well with conical fermenter. Delivery was coordinated very well. Very happy.

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