
Advanced Cooling with Glycol Mixtures
In today's demanding industrial and commercial environments, maintaining precise low-temperature control is often critical. Refcool's glycol chiller systems are specially designed to meet these needs, providing reliable cooling performance even below the freezing point of water.
What is a glycol chiller? It's a cooling system that uses a mixture of water and glycol (an antifreeze agent) as the circulating coolant. By adding glycol, the coolant's freezing point is depressed, allowing the chiller to safely operate at sub-zero temperatures without the risk of ice forming in the heat exchangers.
Our glycol chillers typically use food-grade propylene glycol or industrial ethylene glycol, depending on the application – for example, propylene glycol is a non-toxic option ideal for food and beverage industries. With a Refcool glycol chiller, you can maintain consistent temperatures of 0°C, -5°C, or even lower with confidence, which is essential for processes like fermentation, rapid product cooling, or low-temperature testing.
Key Benefits
- Achieve below-freezing temperatures without risk of system damage
- Precise temperature control for critical processes
- Food-grade options available for sensitive applications
- Enhanced system protection against freezing and corrosion
- Reliable operation in varying ambient conditions

Why Choose Glycol for Cooling?
Glycol chiller systems offer several key advantages that make them the preferred choice for many industries
Glycol chillers enable colder temperatures than standard water-only chillers, which is crucial for applications like brewery fermentation cooling, winery operations, ice rinks, and certain pharmaceutical processes.
- Maintain perfect 2°C brew temperatures in fermentation tanks
- Keep medicinal products stable at -10°C during production
- Achieve exact temperature requirements for your specific process
Glycol acts as a protective agent; it prevents freezing and inhibits corrosion in the chiller's piping and components, contributing to the longevity of the equipment by reducing rust and scale build-up.
- Safe operation during winter or extreme set-points
- Efficient heat transfer despite higher viscosity of glycol-water mixes
- Versatile operation - can double as a normal water chiller when needed
Glycol Chiller Advantages
Achieve temperatures well below 0°C without freezing risk
Optimized designs overcome glycol viscosity for efficient operation
Maintain exact temperatures for critical processes
Prevents freezing and reduces corrosion in cooling systems

Industry Applications and Custom Solutions
Refcool glycol chiller systems are trusted across a broad spectrum of industries for their precision and dependability. We customize each system to fit your specific needs, from small craft breweries to large industrial plants.
Food & Beverage Industry
Breweries use glycol chillers to control fermentation and crash-cool beer, wineries chill grapes and wine must, and dairies and bakeries use them for cold-room storage or chocolate tempering processes.
Pharmaceutical & Chemical
Our glycol units provide the tight temperature regulation necessary for reactions and formulations, often preventing products from overheating or crystallizing during manufacturing processes.
Specialized Applications
From data centers to ice skating rinks, glycol-based cooling achieves specific temperature goals safely. We can customize systems from small 10 kW portable units for craft breweries to multi-hundred kW central systems for large plants.
Features & Specifications
Our glycol chillers are engineered with cutting-edge technology to deliver optimal performance, reliability, and precise temperature control for your cooling needs
Each glycol chiller system can be tailored with the right glycol concentration, pumping capacity, and controls integration to meet your specific requirements. We ensure our chillers use food-safe materials and refrigerants where required.
We incorporate features like dual pumps or backup circuits for critical applications that cannot afford downtime. Our systems are designed for continuous operation with minimal maintenance requirements.
Advanced microprocessor controls maintain glycol temperature within tight tolerances, ensuring consistent cooling for sensitive processes. Remote monitoring capabilities allow for real-time performance tracking.
Technical Specifications
- Capacity Range: 5kW to 500+kW
- Temperature Range: -15°C to +20°C (depending on glycol concentration)
- Glycol Types: Food-grade propylene glycol or industrial ethylene glycol
- Pump Options: Single or redundant pumping systems
- Control System: PLC-based with touchscreen HMI and BMS integration
- Configurations: Indoor/outdoor, portable or fixed installation

Ready to optimize your low-temperature cooling with a glycol chiller?
Contact our team today for expert advice on selecting the right glycol chiller for your application. We'll help you achieve precise temperature control, improve efficiency, and ensure reliable operation for your critical processes.

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