UniFirst's HACCP line of work apparel includes shirts, pants and smocks designed without buttons or pockets for food processing environments. The company's HACCP work apparel cleaning procedures revolve around a six-step "Precision Wash Process," which begins with clothing being separated by color and nature of soiling-prior to being digitally weighed and automatically transported to wash-wheels-so that precise microprocessor-controlled combinations of cleaning agents, water volume and agitation can be used to ensure maximum cleanliness.