A drink can be full of bubbles and still feel completely different from another sparkling drink. That is the key to understanding nitro cocktails. Carbon dioxide and nitrogen are both used in beverages, but they do not create the same result. CO2 gives a cocktail lively effervescence, a sharper sensory profile and the familiar prickling sensation of carbonation.

A signature cocktail does not need multiple homemade ingredients or theatrical service elements to be memorable. Smoke Signals is a savoury Dirty Martini built around charred celery gin, dry vermouth, fine-filtered olive brine, and a few drops of olive oil. The recipe focuses on flavour, temperature, balance, and texture rather than additional aromas or tableside presentation.