We're two couples planning a driving vacation throughout southern France, which will include visiting wineries and dining out. My question concerns the limits for alcohol as applied to the driver of a car. The French drink-driving limit is 50mg of alcohol in 100ml of blood and the penalties for breaking the law are severe (rightly so). The two drivers (both men) weigh about 180 and 225. About how much wine would it take to reach that limit? Is one glass too much?
Obviously, the best course of action is a zero alcohol policy for the driver, and that's the plan, but I want to be armed with information in case there's a temptation for either to drink at a winery or restaurant before driving.