We are very excited to announce this Bushmills whiskey, totally exclusive to The Whisky Shop. This expression has been aged for a showstopping 28 years. This, the second annual release of The Causeway Collection, is an incredibly rare Bushmills 1991 Madeira Cask. The first release was a riotous success and this expression looks to continue in this manner. This single malt was aged for over 13 years in a combination of oloroso sherry butts and bourbon barrels, but that's not all. It then went through a maturation of 15 years in first fill Madeira wine casks. Only 738 bottles exist, and each one is bottled at a cask strength 50.2% abv. The expression is also free from chill filtration and artificial colouring. The last release in this collection sold out incredibly fast, and this is only available while stocks last.