When Scott O’Hearn and Philip Phifer opened LowDown Brewery + Kitchen in 2014, it was on their own terms: a brewery with food — unusual at the time — on an underused corner in Denver’s urban core, and serving straightforward beers rather than trendy styles. On Sept. 30, O’Hearn will close the brewery for good, but once again it is on his own terms, for the most part, which is a rare achievement for craft breweries in Colorado. “It was a really good run.