A dry shake means shaking the ingredients — without ice — before adding ice and shaking again. The technique is used specifically for drinks that contain egg white or aquafaba. Without the cold of ice slowing things down, the proteins in egg white or the saponins in aquafaba can foam up more aggressively, producing a thicker, more stable head. After the dry shake, you add ice and shake again to chill and dilute. The result is a significantly better foam than a single shake with ice produces.
Why It Matters
Foam is texture, and texture changes the way a drink tastes and feels. A properly dry-shaken sour arrives at the table with a dense white head that sits above the glass — it looks intentional, and the first sip through that foam changes the experience of the drink beneath it. Skip the dry shake and you get thin, watery bubbles that dissolve immediately.
Where You'll Use It
Any drink that calls for egg white or aquafaba: Whiskey Sours, Pisco Sours, Clover Clubs, and any sour variation built with foam as a component.
Worth Knowing
Reverse Dry Shake
The reverse dry shake flips the order: shake with ice first, strain out the ice, then shake again without ice. Some bartenders find this produces even more stable foam because the egg white is already cold and slightly diluted when it hits the dry shake phase. It's a minor variation — try both and use whichever works better for you.