Key Diagnostics chemical-free dissolved ozone sanitation

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Key Diagnostics’ range of dissolved ozone systems converts tap water into a fast-acting sanitiser composed of dissolved ozone water. This is not a water treatment system but rather a replacement for traditional chemicals for the sanitation of equipment, floors and walls, and is also approved for direct application to food to reduce bacterial levels.

The advantages of ozone include: 3000 times more effective than chlorine; kills 99.999% of bacteria in 5-15 s; degrades pesticides in 2 min; destroys odours; breaks down into oxygen and water.

The PC-25 is a portable unit capable of producing 9000 L/h with the only costs being the tap water and 240 V power supply. The ozonated water can be applied using a spray nozzle or connected to a CIP system.

Ozone sanitation can replace many high-cost processes such as hot water, steam and UV sanitation systems. Ozone works optimally at room temperature and has low power requirements compared to heat-based technologies. Ozone can also cut water wastage and labour costs by replacing post cleaning water rinsing with ozone water, which also acts as a sanitiser. Ozone can also replace many of the sanitisers used in the food industry.

As ozone breaks down into water and oxygen, it can be used as a mid-process sanitiser to reduce bioload on critical control points without running the risk of tainting the product or shutting down the production line.