Blast Chillers are a vital piece of catering equipment in a commercial kitchen. Their ability to bring down food temperatures quickly is an essential part of maintaining food hygiene. Below are some top tips on maintaining your blast chiller…
- Check door seals on a regular basis for damage and always replace them when split. Cold air is, literally, blasted into the chamber, and any leaks will affect the units performance.
- Most service engines are called out to a freezer or blast chiller because it is not chilling food as quickly as it should. The most common reason for this is the caterer overloading the unit. Ensure the blast chiller is loaded according to the manufacturer’s instructions – paying attention to the guidelines for product volume & depth.
- It is vital that air vents (often found at a low level) are regularly cleaned and kept clear of obstructions. An often overlooked tip is to avoid placing a blast chiller or freezer near a door next to a room with a carpet. Staff walking in and out of the room will drag carpet fibres in which will cause the chiller to clog more often.
- Blast chillers/freezers will usually defrost after each cycle. If you see a build-up of ice when starting a new cycle, call a service engineer to check over the machine before the ice causes damage.
- Hotter weather is coming earlier every year. Many caterers have been caught out by leaving their refrigeration maintenance too late. Bring it forward to April at the latest to ensure your freezer can cope with summer workload.
- Temperature probes are key to maintaining food hygiene levels and good temperature control. Keep a spare probe in the kitchen in case of damage.
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Blast Chillers & Freezers – Maintenance Tips










