The term 'sour' in bar terminology refers to:

The term 'sour' in bar terminology refers to:

• A. The sourness of sour bar mix used in many cocktails
• B. A type of lemon juice
• C. A non-alcoholic beverage
• D. A garnish made from lemon zest

Answer: (A)

In bartending, “sour” designates a family of cocktails built around a tart balance created by a sour component—typically sour mix or citrus juice plus a touch of sweetness. This is the element that defines the drink style across many recipes, from whiskey and pisco to amaretto sours, where the base spirit is paired with lemon or lime and a sweetener, often with a bit of egg white for texture. So the term refers to that sour component used to achieve the distinctive tart flavor found in these cocktails. It isn’t a type of lemon juice on its own, nor a non-alcoholic beverage, nor a garnish.

In bartending, “sour” designates a family of cocktails built around a tart balance created by a sour component—typically sour mix or citrus juice plus a touch of sweetness. This is the element that defines the drink style across many recipes, from whiskey and pisco to amaretto sours, where the base spirit is paired with lemon or lime and a sweetener, often with a bit of egg white for texture. So the term refers to that sour component used to achieve the distinctive tart flavor found in these cocktails. It isn’t a type of lemon juice on its own, nor a non-alcoholic beverage, nor a garnish.