From Longman Dictionary of Contemporary Englishmicrobrewmi‧cro‧brew /ˈmaɪkrəʊˌbruː $ -kroʊ-/ noun [countable] a type of beer that is only produced in small quantities
Examples from the Corpus
microbrew• During happy hour, extended on Monday until the end of the game, microbrews are $ 2.• Indeed, the latest microbrew trend actually harks back to ancient times, when brewers grabbed whatever flavorings were nearby.• For those not in sync with the latest trends, microbrew is simply beer brewed in small, local breweries.