The invention relates to a tool for reducing the breeding time of an alcohol. The invention makes it possible to treat large volumes, stop and restart the ageing process at will from several alcohol tanks alternately. It consists of a frame with a fixed part (15) and a mobile part (16) sandwiching an assembly of wooden plates (2), wine plates (3) and air plates (4). It has a double network which makes it possible to circulate (11-12) the wine in contact on one face of each of the wooden plates (2) and to circulate (13-14) air under pressure in contact on the opposite face of each of the wooden plates without ever mixing with the wine circuit. The tool makes it possible to age wine, or any other type of alcohol to which wood provides added value.