Commercial blast chillers (and blast freezers / shock freezers) cool cooked food rapidly through the 60–10°C danger zone, locking in moisture and meeting HACCP cooling standards. Hospitality Connect stocks blast chillers from Skope, Friginox, Polaris, Polar and FED in 3-tray bench through to 20-tray reach-in formats.
Types and capacity
- Bench blast chillers (3–5 tray): Slot under standard 900mm benches; 10–15kg cooling capacity per cycle.
- Reach-in blast chillers (10–14 tray GN 1/1): The standard for restaurant production kitchens; 25–40kg per cycle.
- Roll-in blast chillers (16–20 tray): Trolley-loading for production kitchens, central catering and aged-care; 60–100kg per cycle.
- Combi chillers / shock freezers: Dual-mode chiller and freezer; +90 to -18°C in a single cabinet.
- Probe-controlled cycles: Chill-by-core-temperature with fold-back probes — required for HACCP-defensible documentation.
Sizing for production
Blast chillers are sized by kg-per-90-minute cycle (HACCP standard cool: 60°C to 10°C in 90 minutes). A 3-tray bench unit cools 12kg of cooked product per cycle (3 hot GN 1/1 trays at 4kg each). Production restaurants commonly run two cycles back-to-back during dinner service for next-day prep. Multi-purpose units that also blast-freeze run a longer cycle (90 minutes to -18°C core); confirm if you need both modes before purchase.
Installation and operating notes
- Power and refrigerant: Bench units run 15A 240V; reach-in steps to three-phase. Most modern units use R290/R600a hydrocarbon refrigerant.
- Floor space and clearances: Reach-in units need 100mm rear ventilation; door swing requires 1100mm clear front for full 180° opening.
- Probe care: Insert probe into the centre of the largest item; clean and sanitise between cycles.
- Pack hot product loosely: Don't stack hot items — air must flow around each pan to chill on schedule.
- Defrost cycle: Auto-defrost runs after each cooling cycle; condensate drain must be clear.
Document blast-chiller cycles for HACCP audit. Australian Food Standards require cooling from 60°C to 21°C within 2 hours and 21°C to 5°C within a further 4 hours — total 6 hours from cook to chill. A correctly-sized blast chiller compresses that to 90 minutes for a HACCP-defensible record, with probe-data download for the council inspector. Don't overload — pack hot pans loosely with airflow space between them. Run the chiller continuously through service prep cycles; intermittent use stresses compressor cycles and shortens life. Schedule defrost and probe-clean as part of the daily checklist.
Pair with
Pair with under-bench freezer for storage of frozen product, salad prep fridges for chilled service and anti-jam pans stainless steel gastornorm pan for chilling vessels.
