Freezing

Deep-freezing spirals can be used for baked goods, cakes pastries and packaged products. It ensures compliance with the most stringent food safety standard. Thanks to its obstacle-free central structure, every part of the spiral is easy to clean and service. This configuration also makes it possible to optimize the horizontal air flow, which is channelled evenly on all the food products inside the deep-freezing cabinet. The efficiency of the evaporators, sized according to the type of product being processed, reduces the system’s energy consumption, making the freezing system both environmentally friendly and cost-effective. The spiral-system extends the life of food products while maintaining nutritional and organoleptic values similar to fresh products. In the freezing cabinet the product is brought to extremely low temperatures, which can reach – 40 ℃, in just a few minutes.

Ultrasonic oscillation electronics produce acoustic waves (frequency range of ~1,7MHz) that are transferred to an oscillator (piezo element) located at the bottom of the humidifier under a water reservoir. The oscillation causes the finest of aerosol droplets to separate mechanically from the surface of the water. The very small diameters of the droplets (approximately 1-2 μm) allow fast evaporating and mixing with the environmental air. This technology allows a very high relative humidity to be produced mechanically (100 %) at comparably low temperatures (e.g. between -20 °C and +35 °C).

The freezing process for dough pieces at temperatures down to -20 °C can even be supported by aerosols. Because of the comparably high humidity that can be generated, with this process the freezing rate in the blast freezer is significantly higher (saving time and energy). Flaking of the crust can be clearly minimized or even completely prevented. The problem of freezer burn can also be considered as being technically solved as it is a result of the atmospheric freeze-drying (conventional refrigeration Technology). The water-loss of the product is also avoided/minimized.