When 20% by volume of a 52% LiBr solution containing the aroma compounds was distillated in the simple distillation unit to obtain the LiBr reference distillation results, 78% of methanol, 78% of ethanol, 75% of methyl acetate, 68% of methyl butyrate and 66% of ethyl butyrate was recovered in the condensate (Fig. 5). Additional evaporation of the feed solution did not increase the percentage of recovered aroma compounds in the condensate.