Cocktail Shaker
The most essential bar tool. A shaker combines ingredients with ice to chill and dilute them quickly. The two main types are the Boston shaker (two tins) and the cobbler shaker (tin with built-in strainer and cap). Shake vigorously for 10–15 seconds until the outside frosts over.
Used for: Any recipe that says "shake with ice" — sours, margaritas, daiquiris, and most cocktails with citrus or egg white.