Tucson Young Professionals host an evening of tequila- and beer-tasting, with border-rock music by The Jons and desserts from Café a la C'ART, from 7 to 11 p.m., Friday, Feb. 3; $20, $15 online by Thursday, Feb. 2. Author and horticulturist Scott Calhoun discusses the science of harvesting agaves to produce distilled mescal and tequila. Finley Distributing illustrates the science of beer, and a showcase offers beer flights from six local breweries. Visit tucsonyoungprofessionals.com to register or for more information.