Henstone Single Malt English Whisky – Ex-Bourbon Cask Aged (hand written label on the back describes the batch number) latest edition. This is an ex-bourbon cask aged whisky and for full details when you receive see our RELEASE PAGE). The ex-bourbon casks we use are a mix of Jack Daniels, Heaven Hill, Jim Beam to mention a few. Bottled at 43.8%. Each release is SINGLE CASK meaning it is limited to around 300 – 350 bottles. This single malt whisky, which is beautifully smooth, is mashed, distilled, aged and bottled by us here at Henstone Distillery. Like all of our products this has not been chill filtered or coloured.