Barrel filling Peter Stobbe began to mature Stobbe Machandel in barrel as early as 1776. The Stobbe 1776 BARREL FILLING for the 240th anniversary also followed this tradition. Stored in bourbon casks for 12 months, the sharp tips of coriander are rounded off. The “vanilla note” of the bourbon barrel gives the gin its special character at 43% ABV. On the clear bottle, the red cross symbolizes the cask gin at 43% vol.