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FAQ

What temperature should my commercial upright freezer be set to for safe food storage?

Updated 19 Jul 2026 FAQs
FAQ
Quick answer

For most Irish foodservice operations, aim to hold product at -18°C or colder for safe frozen storage.

Support note

Need more detail? For model comparisons, setup steps and troubleshooting, see the related guides below.

For most Irish foodservice operations, aim to hold product at -18°C or colder for safe frozen storage.

Practical approach:

Setpoint: start at -20°C so the cabinet has headroom during busy service and door openings.

HACCP check: verify with a calibrated probe in a dummy pack or between packs, not just the air display.

When to go colder: only push lower (for example, for frequent door openings, hot kitchens, or high ice-cream load) if you consistently struggle to maintain -18°C product temperature.

Read the full guide: Unifrost Upright Freezer Temperature Controller: Energy Optimisation for Irish Kitchens.

Verify food temperature, not only the display

  • Start around -20 C where the manual permits, then verify frozen food remains at or below -18 C with a suitable between-pack or dummy-pack check.
  • Go colder only when documented product control requires it; first correct door discipline, load spacing and airflow so a colder setting does not mask the real cause.
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