How do cellar coolers work?

Cellar coolers keep drinks at a steady storage temperature in pubs, bars and restaurants and are used for items that could be affected by heat. Even small temperature changes can affect the flavour of a drink or food, so keeping them at a consistent temperature is really important. But how do cellar coolers actually work? Let’s take a look.

How the cooling process works

A typical system has two main sections: an indoor evaporator unit and an outdoor condensing unit. The indoor unit draws warm air from the cellar and passes it over cold coils containing refrigerant. Heat is removed from the air, which is then circulated back into the room by a fan.

The refrigerant carries that heat to the outdoor unit, where it is released. A thermostat monitors the cellar temperature and switches the cooling cycle on when the room becomes too warm. If you’re looking for a company to help with your system, using a local service, for example a specialist in cellar cooling Gloucester like this example https://www.acecc.co.uk/cellar-cooling/gloucester may be a good way to go.

Keeping the system effective

Good airflow is essential, so things like boxes, barrels and other stock shouldn’t block the unit or prevent cool air moving around the cellar. Make sure the doors are closed as much as possible, as warm air entering the room makes the system work harder.

Temperature readings should be checked in different parts of the room, as warm spots may suggest poor circulation. A well-maintained cooler protects drink quality, reduces waste and makes serving at the right temperature far easier.