What's the noun for microbrewed? Here's the word you're looking for.
microbrewery
A small commercial brewery, often one serving a single pub at which it is physically located; in the United States, often used to indicate a brewery that produces fewer than 15,000 barrels of beer annually.
“The site is selling audio ads to local advertisers, including a microbrewer, a restaurant, a stereo store and the Denver Center for the Performing Arts.”
“Glasstown Brewery will be the second microbrewer to house operations in a DRBA airport.”
“McGovern assigned the challenge to microbrewer Sam Calagione of Dogfish Head Craft Brewery in Lewes, Del.”