Time to get your fresh delicious traditinal cask ales delivered direct to your door. Wigan Brewhouse Mad Monk Imperial Stout 5 Litre Cask is a bag in box concept delivering 5 litres of the freshest Wigan Brewhouse cask ale. Sourced directly from the brewery in the heart of Wigan, the 5 litre box arrives chilled and is good to keep unopened for 10 to 14 days, once opened the beer should be consumed within a week