It uses a disposable plastic film which acts as the conveyor belt travelling through the freezing tunnel over cryogenically refrigerated plates. These plates operate at -196°C, rapidly and effectively freezing the contact surface of the product, while the tunnel environment is cryogenically cooled by liquid nitrogen to reduce the entire product temperature.
The consolidated features of this freezer technology deliver products free from belt marks and wrinkles which can be easily handled for further processing. Due to the nature of the belt, soft, wet or sticky products can be managed without product deformation or adhesion – even liquids can be frozen with ease. As the belt is disposable, the freezer can be quickly and efficiently cleaned at the end of production, minimising expensive delays.