Manual Warewashing Equipment, Hot Water Sanitization Temperatures

MANUAL OF NAVAL PREVENTIVE MEDICINE

(3) For a stationary rack, dual temperature machine, 150oF (66oC);

(4) For a multi-tank, conveyor, multi-temperature machine, 150oF

(66oC).

b. The temperature of the wash solution in spray-type warewashers that

use chemicals to sanitize may not be less than 120oF (49oC).

4-2.15 Manual Warewashing Equipment, Hot Water Sanitization

Temperatures

If immersion in hot water is used for sanitizing in a manual

operation, the temperature of the water shall be maintained at

171o F (77o C) or above.

4-2.16 Mechanical Warewashing Equipment, Hot Water

Sanitization Temperatures

a. In a mechanical operation, the temperature of the fresh hot water

sanitizing rinse as it enters the manifold may not be more than 194F

(90C), or less than:

(1) For a single tank, stationary rack, single temperature machine,

165 F (74oC); or

b. For all other machines, 180oF (82oC).

4-2.17 Mechanical Warewashing Equipment, Sanitization

Pressure

The flow pressure of the fresh hot water sanitizing rinse in a warewashing

machine may not be less than 15 pounds per square inch (100 kilopascals) or

more than 25 pounds per square inch (170 kilopascals) as measured in the

water line immediately upstream from the fresh hot water sanitizing rinse

control valve.

4-2.18 Temperature Measuring Devices

Temperature measuring devices shall be calibrated in accordance with

manufacturer's specifications as necessary to ensure their accuracy.

Each

device will be accurate to 3oF ( 1.5oC).

4-2.19 Manual Warewashing

4-2.19.1

Equipment

4-2.19.2

Field Messing