PEPPERMINT

Peppermint has been used as a culinary and medicinal herb across the Mediterranean since at least Roman times — and likely much earlier; Egyptian tombs have yielded peppermint remains. The Mitcham strain was developed in 18th-century Surrey, England, and became the global standard for premium peppermint until commercial production migrated to America and (more recently) Morocco. The defining compound, menthol, is so distinctive that it has become a near-synonym for "cool" in everyday speech — peppermint is the only natural source of menthol in significant commercial quantities. In gin, peppermint is a contemporary herbaceous botanical providing clean cool character.

Peppermint brings cool menthol freshness with a sweet mint background. A full sachet pushes a gin firmly into clearly minty territory; a half-sachet provides quiet cool depth that integrates with juniper. Pair with chocolate (cacao nibs) for an after-dinner profile, or with lemon balm and citrus peel for a Pimm's-style summer blend.

Menthol dominates at ~41% of the essential oil — the defining cooling compound that triggers cold-receptor neurons in the mouth without actually lowering temperature. Menthone (~23%) adds the warmer mint body that distinguishes peppermint from spearmint (which is dominated by carvone instead). Menthyl acetate layers a sweeter floral note. 1,8-Cineole contributes a faint eucalypt edge. [source] Cool extraction preserves the bright menthol; warm extraction develops a softer body.