METHOD OF MANUFACTURING AND PROCESSING ALCOHOLIC BEVERAGES, AND ALCOHOLIC LIQUIDS OBTAINED BY PERFORMING THE METHOD

摘要

METHOD OF MANUFACTURING AND PROCESSING ALCOHOLIC BEVERAGES, AND ALCOHOLIC LIQUIDS OBTAINED BY PERFORMING THE METHOD An alcoholic liquid obtained by fermenting a must or a wort is initially subjected to ultrafiltration or to reverse osmosis to obtain a permeate which contains a higher proportion of water and alcohol than the starting liquid and a concentrate which contains a higher proportion of the substances that flavour the starting liquid. The permeate is then subjected to reverse osmosis using a membrane which is substantially impermeable to alcohol, while still being permeable to water. The concentrate from the second step is added to the concentrate form the first step to produce a liquid which has a higher concentration of alcohol than the starting liquid. The resulting liquid may be useable at said higher concentration as a beverage, or it may be used for transport and/or for storage, with water being added to thereto to restore the beverage substantially to its starting condition before being drunk.