Black Snake starts its life in first-fill ex-Bourbon casks. Then several casks are vatted into new sherry butts and are left for around a year before bottling two thirds of the cask. They call these "Vats" as they are a kind of mini Solera. After each bottling they add more ex-Bourbon casks, always of the same whisky, and leave for around a year before again bottling two thirds of the Vat. All future bottlings from each vatting of Black Snake will therefore contain some spirit that was in previous expressions from the Sherry Butt.

This bottling is from VAT 4 and Second Venom.