I'm pretty sure the whole hops I used to dryhop the other
day were poorly stored. I couldn't smell anything then, but
now that I'm smelling my airlock, it smells 75% like hops,
and 25% like... musty cheese. Not overwhelming, but
enough to notice.
I was thinking about getting another ounce of pellets and
dry hopping again to attempt to mask it. I won't ever be
going back to the LHBS I bought them from.
Although I'm new to the hobby, non refrigerated hops
should have totally tipped me off. Why would they do that?