Two Stacks Irish Whiskey Releases Some Irish Whiskey In A Can Two Stacks Irish Whiskey Releases Some Irish Whiskey In A Can Two Stacks Irish Whiskey has announced the release of Dram in a Can, which is basically Irish whiskey in a can. The 86-proof, 100ml release is a blend of light and dark grain, pot still whiskey and peated malt, according to information from the brand. Matured in ex-bourbon, Oloroso sherry and virgin oak casks, the release is one of only a small number of Irish whiskeys using peated malt in its blend. The whiskey is non-chill filtered with no added coloring, as well.