Aging of cognac spirits in old oak with the benefit of extracted products
The dynamics of oakwood exhaustion during seven cycles of aging cognac spirit in oak casks was studied. The highest extraction of oakwood components (49-71%) was registered in the first cycle, with the lowest level of extraction (less than 10%) after the fourth filling. The inner surface of oak casks becomes exhausted at a level of 90% and more following the sixth cycle and onward.