FIELD: food industry. SUBSTANCE: invention relates to production of milk concentrates from secondary materials. Acetone solution of cellulose acetate is molded on stationary restricted surface by pouring method followed by vaporization of solvent within one day. Proportion of solution volume to surface area is 0.4 to 1.4 for 5% concentration, 0.4 to 1.02 for 10% concentration, and 0.4 to 0.6 for 15% concentration of cellulose acetate solution. EFFECT: optimized procedure. 1 tbl
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