I think i effed up my last batch. I brewed a Lagunitas IPA form CYBI. I used a new thermometer and my strike water was way too hot. I was shooting for a mash temp of 160F. I overshot and hit 178F!! For fear of denaturing all of my enzymes I promptly got it cooled down to 160F. Next my manifold in my MLT came off. I had to empty the tun and fix it. Somehow I still hit my preboil gravity. It's been fermenting at 68F for 4 days with WLP002 yeast and my refractometer (and hyrdometer) is telling me I'm at 1.005. What the hell!!? I was shooting for a terminal gravity of 1.018. This is now my second beer to finish way too low. My last Pale Ale finished at 1.004. I was shooting for 1.010. Any ideas why I'm going so low? I don't think it's wild yeast. I'm pretty crazy about sanitation.