
Lager is a beer fermented cold with bottom-fermenting yeast, clean and crisp.
Another lager or pilsner
Any pale lager or pilsner will do in the same amount. In cocktails like a Michelada, a light Mexican lager fits best.
Alcohol-free lager
Works one for one: the beer's taste stays, and its alcohol goes.
Pale ale
Expect a more bitter and often fruitier cocktail in its place.
The name is the method: lagern is German for storing. Lager ferments cold and slow with a yeast that works at the bottom of the tank, then conditions cold for weeks. That strips out the fruity esters an ale yeast throws and leaves a clean, dry beer. In a drink, that cleanness is the point: lager lengthens and carbonates without adding much flavor of its own.
Opened beer loses its fizz quickly — use it fresh.