The original Boston Beer Company brewery in Jamaica Plain runs hour-long tours and tastings nearly every day except Mondays. Free-tour-with-tasting tradition is part of the Boston ritual: Stony Brook T → 10-minute walk → tour → samples in the taproom. Cannabis-aware framing for 21+ adults: this is a beer day, not a flower day, but on the walk back through JP you pass three licensed dispensaries, so a stop on the way home for sealed product is reasonable.