how would buying a cheep whisky or vodka and mixing it with your favorate beer be the same . at brewdog after we have first fermented the the wart with yeast to make the alcohol we then age the beer for tactical nuclear penguin in whisky casks for 15 months to give it more flavour then it was frozen twice to minus 20 and the ice removed to leave a more pure alcohle this was done twice if you could do all this in your own home fair play to everyone else who has bought our beer i hope you enjoy it kyle