I am a brand new home brewer and just brewed my first beer yesterday...a Zombie Dust clone. I used a yeast starter and just a few short hours later, my carboy was going nuts...using a 1-inch blowoff tube into a one-gallon jug filled half way with sanitizer/water...lots of foam, etc. This morning the foam was all but gone but there is brown residue throughout the inside of the carboy and the blowoff tube...which I imagine is all good, no? I am fermenting in a chest freezer with a temperature controller. Tonight after work I took a peek inside, put my head down inside the chest freezer and took a big whiff...the smell almost knocked me out and burnt my nostrils! I don't know how to describe it, but it was like a hoppy ammonia smell. Now I'm concerned...but don't know if I need to be. Any help would be appreciated.