Minnesota Administrative Rules

4640.2900 DISHWASHING FACILITIES AND METHODS.

Subpart 1.

Methods.

Either of the following methods may be employed in dishwashing.

Subp. 2.

Manual.

A three-compartment sink or equivalent of a size adequate to permit the introduction of long-handled wire baskets of dishes shall be provided. There shall be a sufficient number of baskets to hold the dishes used during the peak load for a period sufficient to permit complete air drying. Water-heating equipment capable of maintaining the temperature of the water in the disinfection compartment at 170 degrees Fahrenheit shall be provided. Drain boards shall be part of the three-compartment sink and adequate space shall be available for drainage. The dishes shall be washed in the first compartment of the sink with warm water containing a suitable detergent; rinsed in clear water in the second compartment; and disinfected by complete immersion in the third compartment for at least two minutes in water at a temperature not lower than 170 degrees Fahrenheit. Temperature readings shall be determined by a thermometer. Dishes and utensils shall be air-dried.

Subp. 3.

Mechanical.

Water pressure in the lines supplying the wash and rinse section of the dishwashing machine shall not be less than 15 pounds per square inch nor more than 30 pounds per square inch. The rinse water shall be at a temperature not lower than 180 degrees Fahrenheit at the machine. The machines shall be equipped with thermometers which will indicate accurately the temperature of the wash water and rinse water. Dishes and utensils shall be air-dried. New dishwashing machines shall conform to sections 1, 2, 3, 4, and 6 on pages 7-28 inclusive, of Standard No. 3 issued in May 1953, entitled Spray-Type Dishwashing Machines by the National Sanitation Foundation, Ann Arbor, Michigan, which sections of such standard are hereby adopted by the commissioner of health with the same force and effect as if the same were fully set forth in and written as part of this subpart.

Statutory Authority:

MS s 144.55; 144.56

History:

L 1977 c 305 s 39

Published Electronically:

November 12, 1997