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Abstract This review article focuses on the development of atmospheric freeze drying (AFD): technological aspects, product possibilities, physical properties of products, drying kinetics, modeling, and simulation. The main motivation for developing atmospheric freeze drying as a new drying technology is the desire to reduce the energy consumption compared to vacuum freeze drying while maintaining a high product quality. One technical solution of atmospheric freeze drying is a combined atmospheric freeze drying and heat pump system with new environmentally friendly refrigerants. Temperature programs make it possible to customize products with desired qualities and properties, like retained color, instant properties, aroma, and nutritional value. Keywords: Atmospheric freeze dryingModelingPhysiochemical propertiesReviewTechnologies ACKNOWLEDGEMENT The Norwegian Research Council is acknowledged for financing this survey.
Claussen et al. (Fri,) studied this question.
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