What are fermented ingredients in cocktails?

Fermented ingredients in cocktails include ginger beer, kombucha, wine and champagne. Ginger beer is a key ingredient in the Moscow Mule, alongside vodka and freshly squeezed lime juice. Ginger beer also features in the Dark ‘n’ Stormy and in various Moscow Mule twists. Wine is a product of fermentation and features in cocktails like Spritz, Bellini, French 75, Kir, Mimosa, Champagne cocktail, and Bicicletta. The Negroni Sbagliato is made with equal parts bitter, red vermouth, and brut. The Black Velvet brings together two fermented beverages: champagne and stout beer.