METHOD FOR CONCENTRATING LIQUID PRODUCT

摘要

PURPOSE:To eliminate concentration limitation, by subjecting a liquid food to freezing treatment and sublimating desired water content from the frozen food under reduced pressure. CONSTITUTION:A liquid food such as juice or coffee is frozen by proper means. Then water content in the liquid food frozen under reduced pressure is sublimated at a specific amount by heat treatment. Thus, liquid food concentrated to desired concentration after applying thawing treatment at a proper period up to dryness of the liquid food can be obtained by utilizing such a method for vacuum-freezing and drying the liquid product.