PDFWAC 246-215-04610
Objective—Cooking and baking equipment (FDA Food Code 4-602.12).
(1) The food-contact surfaces of cooking and baking equipment must be cleaned at least every twenty-four hours. This section does not apply to hot oil cooking and filtering equipment if it is cleaned as specified under WAC 246-215-04605 (4)(f).
(2) The cavities and door seals of microwave ovens must be cleaned at least every twenty-four hours by using the manufacturer's recommended cleaning procedure.