Most Wednesdays (all but the first) Hop Dogma hosts a down home Invitational Bluegrass Jam Session from 6-8pm. Local artists from around the Bay Area or just passing through get invited to stop by the taproom and take part in the bluegrass jam session. You’ll never know who will show up!… Well you will, because you can check the lineup for each week by clicking here to see the Hop Jam Lineup