Sorry for the newbie questions. My first time looking at the USPTO site.
Do you TM all your beer names?

After speaking with someone at USPTO I'm confused. I thought you had to TM every name. I was told I only need to if I want to protect it.

I'm a little 2bbl tasting room so worst case a big guy starts using my number one selling beers name and I have to change my beers name. Is this accurate?

Also if I am going to TM a bunch of beer names is it a separate fee for each name or can I lump a bunch on one application for a single fee?