If I used the darn thing correctly, I'd get pretty good at this. I measured water, milk, V-8, an IPA I was enjoying, and red wine. Turns out I was reading it incorrectly. It was at 1.08 OG, now at 1.021 going into secondary fermenter. All is good!
So I completed my boil, got wort down to 72 deg, and first OG reading is 1.82, should be 1.071-1.075. The hydrometer gauge is sticking 2" out of my wort. Help please.....