MALTS - Maybe this is an anorak matter , but somebody I know took this picture at a cooper's in Scotland not so long ago. I really wonder what it is and what it means. Maybe some Macallan malt is been shipped to Glendronach in tankers and 'casked' there? This cask was empty, obviously, which might mean the 5 or 6yo malt has already been used for blending.