Meat Processing Plants

In meat processing facilities, pathogens including E. coli O157:H7, Salmonella, and Listeria monocytogenes can spread rapidly via carcass surfaces, equipment, and airborne routes. Conventional disinfection methods carry chemical residue risk and lose efficacy at low temperatures.

Ozone directly overcomes these challenges: ozone gas applied to beef brisket surfaces achieves 73–98% bacterial reduction within 3 minutes (US patent document, food disinfection study). With 0.9–3.2 mg/L aqueous ozone, P. fluorescens and P. aeruginosa biofilm survival rates drop to 1.0% at 5 minutes contact time, and to 0.00002% at 3.2 mg/L dose with 20 minutes contact. Industry data shows 99% reduction in total coliform, E. coli, and Salmonella load in carcass wash operations using ozonated water (Chang and Sheldon, 1989; food processing applications review).

Effective even at low temperatures, ozone extends shelf life while reducing chemical disinfectant procurement costs and wastewater load.