Contrary to what most people believe, when using beer, wine or other alcoholic beverages in recipes, a lot of alcohol is left after cooking.

Here are the facts from the Agricultural Research Service of the USDA

ALCOHOL IN COOKING:
Alcohol remaining after preparation
· 100% Immediate consumption (Best Method)
· 70% Overnight storage
· 85% Boiling liquid, remove from heat
· 75% Flamed

Baked or simmered:
· 40% after 15 min
· 35% after 30 min
· 25% after 1 hour
· 20% after 1½ hours
· 10% after 2 hours
· 5% after 2½ hours