Please help! I brewed a Dogfishhead 60 minute clone 4 days ago using my standard all grain, batch sparge method. The recipe called for Ringwood yeast strain (never used before) which I made a starter for 3 days earlier. I followed all of my standard sanitary precautions. I went to check SG today from my bucket fermenter and noted STRONG chemical odor, almost burned my nose. OG was 1.065, today it was 1.020 and tasted nasty with a chemical taste much like the smell. Sorry I can't describe it better. I have never made a bad batch and am very concerned. Is it this strain of yeast and just has to go further or may this be my first bad batch?