The world's most popular long drink — the right glass, the right ratio, and matching garnish to gin botanicals.
The Gin & Tonic was created as a practical medicine. British officers in India were prescribed quinine to prevent malaria — but quinine alone was intensely bitter. Mixing it with gin, sugar, water, and lime made it palatable. The British East India Company sold pre-mixed tonic water in the 1800s, and the G&T was born.
The modern art of the G&T is matching garnish to the gin's dominant botanicals. Citrus-forward gins (Hendrick's, Tanqueray No. Ten) go with cucumber or grapefruit. Juniper-forward London Drys (Gordon's, Beefeater) go with lime. Floral gins go with elderflower or lavender. The copa glass — wider than a highball — concentrates the aromatic compounds in the headspace, making it smell better.
Use Hendrick's gin, a premium tonic, and sliced cucumber. The cucumber echoes the rose and cucumber botanicals in Hendrick's perfectly.
Use Tanqueray No. Ten with grapefruit tonic (Fever-Tree) and a grapefruit slice. One of the best combinations in the gin world.
Use a floral gin (Bloom, Beefeater 24) with elderflower tonic and a sprig of dried lavender. Perfumed and spring-like.