Laphroaig Islay Single Malt Quarter Cask Scotch Whisky uses small quarter casks from a bygone era to create the perfect marriage of peat and oak. Laphroaig today breathes new life into the tradition. Still-maturing whisky from our standard ex-bourbon barrels is transferred to quarter casks and left to rest in our warehouse just a stone's throw the Atlantic shore. This increased oak contact creates a soft and velvety edge to compliment Laphroaig's distinctive peatiness. The finish is long and alternates between this sweetness and smoke.