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Ozone in food factories: where it fits

Where food plants typically use ozone, and what to clear with QA first

Six points where food plants use ozone
Six points in a food plant where ozone is typically used

Why food plants look at ozone

Because of the constraints on chemicals in food production areas. Anything used must leave no residue on food-contact surfaces and must be rinsed off completely before the line starts, which costs time and water.

Ozone reverts to oxygen on its own, so there is no residue-rinsing step — a clear advantage for work that has to be done every shift.

Where it is typically used

  • Treating production areas and cold rooms outside line hours
  • Raw material stores and packing rooms
  • Washing fruit and vegetables in ozonated water, to reduce microbes and agricultural chemical residues
  • Recirculating water systems in the production process
  • Changing rooms and staff bathrooms, which are sources of odour and microbes
  • First-aid rooms and staff canteens

What to clear with QA before you start

  • A treatment schedule that does not clash with line hours
  • Procedures for locking off the area and posting signage during treatment
  • Effects on certain materials — some rubbers degrade faster under continuous ozone exposure
  • Before-and-after records for your quality documentation system

We do not claim ozone replaces your existing cleaning procedures or HACCP system. It is a supplementary tool that reduces the load at certain points, not a substitute for the whole system.

How to start

We recommend starting with a single area — a raw material store or the staff bathrooms, for example — measuring before and after, then expanding. There is no need to invest across the whole plant up front.

Want to know whether your place can be fixed?

Book a survey first — free, no obligation. If ozone is not right for your problem, we will tell you straight.

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