cweston
Well-Known Member
Kevin K said:Sorry, should have mentioned batch size. It was indeed 5 gallons. My hydrometer measured 1.064 at 76º, corrected that should be 1.066. I spun the hydrometer in my thief to make sure I had no bubbles, and to make sure it wasn't sticking to the side of the thief. The reading was taken after I topped up with water (partial boil).
I don't know what else to tell you, other than this was my first hydrometer reading with wort, and I had tested it in 60º water, it read a perfect 1.000
Kevin
Herein lies the reason that many here distrust hydrometers. From the proportions of ingrediants you described, it's really not possible to get an OG of 1.066 in a 5 gallon batch. It is possible that your top off water wasn't well-mixed with your wort and you somehow got a denser sample than the overall finished product.
If that's true, it's no worry, because the action of fermentation would more than adequately mix the wort.
I've often gotten puzzling hydrometer readings at pitching time, but usually a little low ratehr than high, which I assume is because the top-off water was not well-enough integrated.