2Harry Potter isn't always a little kid with the dream of becoming a great wizard, eventually he turns into an adult. In wizarding society, seventeen is the magical age in which young wizards can start to legally imbibe. Harry turns eighteen during the last book of the series, so he has had a whole year of drinking under his belt. Alcohol is very strongly regulated in the magical as well as muggles world since it has the power to lower inhibitions. This book has some cocktail recipes that would definitely be on the menu at The Leaky Cauldron when Harry and his crew decide to unwind after a long day. When you are looking for sensational cocktails to serve at your Potter-inspired bash, look no further than the fan guide to the ultimate cocktail.