History of National Homebrew Day In 1988, May 7 was announced before Congress as National Homebrew Day. The American Homebrewers Association (AHA) created AHA Big Brew as an annual event to celebrate National Homebrew Day around the world. AHA Big Brew is held each year on the first Saturday in May. Big Brew Day 2015 In 2015, there were 7 teams of over 20 people that brewed over a 100 gallons of beer. « ‹ 2 of 2 › » Big Brew Day 2014 In 2014, we split up into 5 teams to make sure everyone had something to brew and keep them busy. Club members who participated met to prepare their team recipes and coordinate equipment responsibilities. We enjoyed some brew, cigars and barbecue while brewing the day away. Special thanks to our dedicated Big Brew Day Photographer, Steve Maciejewski! And to Tap It Homebrew for hosting our planning meeting.