High Temperature Machines
150 deg F minimum wash temperature
Ideal: 160 – 165 deg F; avoids baking soils on to dishes
Wash tank temperature maintained by separate heating source
180 deg F minimum rinse temperature
195 deg F maximum allowed by NSF
“Booster heater” heats incoming water to 180 deg F
110 deg F incoming to 180 deg F = “70 degree rise”
140 deg F incoming to 180 deg F = “40 degree rise”
Low Temperature Machines
120 deg F minimum wash temperature
140 deg F recommended
Rinse with sanitizing solution
50 ppm minimum sodium hypochlorite (NaOCl)
120 deg F minimum rinse temperature, 140 deg F recommended
75 deg F minimum allowed for “glasswashers”
12.5 – 25 ppm iodine solution (iodiphor) (75 deg F minimum)