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Quizzed article | REF: BE9770 V1

Cold chain.Preservation refrigerated and frozen food

Authors: Evelyne DERENS-BERTHEAU, Guy LETANG

Publication date: September 10, 2017, Review date: April 26, 2021 | Lire en français

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    3. The need to control water loss

    3.1 Water loss mechanisms

    Water loss from products is mainly due to the fact that the vapour pressure of the water contained in the product (p wp ) is higher than that in the surrounding environment (p wm ). This is the phenomenon of evapotranspiration, the intensity of which can be expressed by :

    mw=βS  [pwp−pwm]
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