5Nines Distilling sources South Australian-grown and malted Pilsner barley for its single malt expressions, fermenting for seven days before distillation in the distillery's custom copper pot still. The PX Cask expression was matured in a Pedro Ximenes sherry cask — the richest and most intensely sweet of the sherry cask types — which imparts characteristic dark fruit, raisin, chocolate, and Christmas cake notes to the spirit. Bottled at cask strength of 64% ABV with no water addition, no chill filtration, and no fining agents, this is a highly concentrated single-cask release. The high proof preserves the full intensity of both the spirit character and the PX cask influence.

5Nines Distilling is a small-batch single malt producer situated in the Adelaide Hills of South Australia, a cool-climate elevated region whose red clay soils and pronounced diurnal temperature variation suit spirit maturation. Founded in 2016 by David Pearse — a corporate IT architect — and Steven Griguol — a builder and sculptor — the distillery began in David's Adelaide Hills garage before relocating to larger premises on the Adelaide plains in late 2021, enabling seven-days-a-week production. Rather than purchasing equipment from a manufacturer, the pair designed and built their own copper pot still, retaining full control over distillation character. The distillery uses South Australian-grown and malted Pilsner barley across all its single malt expressions.