Not to sound insulting, though this might be, but without knowing more details I'm going to assume you're failing at the soft interview questions. In an industry where creativity is just as important as engineering knowledge, it's absolutely critical that you nail your soft interview questions.

Don't be afraid or insulted by them, OWN them. Spend time this weekend thinking about what exactly your hobbies are. You definitely have them, even if it's spending time cleaning up baby mess. Think about things that bring a smile to your face and can project to others what your passions are in life.

Never lie and it bothers me that some replies below mention that as an option. However, do MARKET yourself.

The reason these interviewers are mentioning craft-beer to you is because they're trying to get inside your head and see what makes you tick. Beer is an easy way in SF to connect with a lot of people. So yea, no one cares you don't like beer, and I know plenty of people don't drink at all. I promise that that's not why you're not getting an offer. :)