PTL has created innovative hygienic washdown cooling tunnels in response to customer requests and evolving industry standards. In recent years, the industry has seen a rise in allergen cases and strengthened allergen regulations.

PTL’s design focuses on eliminating areas where allergens can grow, either by enhancing sealing or enabling all parts of the cooling tunnels to be washed, including ducting, evaporator sections, beds, belts and drives. At the same time, PTL has been able to maintain and even improve its machinery's cooling efficiency to ensure controllability, optimum cooling and maximum production.

The washdown cooling tunnels are designed for cereal/granola and confectionery bar masses, and chocolate coatings.