St. Louis is a beer city, but when is the last time you really celebrated that? Don't worry, you can atone for your sins of omission and do good at the same time at 8 p.m. Saturday at the St. Louis FestivAle. More than 25 breweries serve up their best at this benefit for the Cystic Fibrosis Foundation, which takes place at the Casa Loma Ballroom (3354 Iowa Avenue; www.stlouisfestivale.eventscff.org). Old Bakery Beer, Urban Chestnut, 2nd Shift Brewing and 4 Hands Brewing are all participating, and the food is provided by Mathew's Kitchen, Pi and the Handle Bar. Tickets are $50 to $65, but before you go, visit the website and read the infection control policy. Crowds can be risky for people with cystic fibrosis if everyone doesn't take care when they cough and sneeze.