Soursop Bitters

Sour sour bitters (commonly known as Sour Sour or simply sour bitters) is a specialized style of cocktail bitters designed to provide a bright, mouth-watering punch of acidity alongside a traditional botanical bitterness. Unlike classic aromatic or citrus bitters that primarily contribute deep herbal or pure zest notes, sour bitters incorporate concentrated fruit acids—such as citric, malic, or tartaric acid—extracted from ingredients like green apples, rhubarb, unripe berries, and sharp citrus fruits.