California Code, Health and Safety Code - HSC § 114097

Equipment food-contact surfaces and multiservice utensils shall be effectively washed to remove or completely loosen soils by the use of manual or mechanical methods necessary, such as the application of detergents containing wetting agents and emulsifiers, acid, alkaline, or abrasive cleaners, hot water, brushes, scouring pads, high pressure sprays, or ultrasonic devices.