So I've managed to lose the records of my 2nd-5th batches of mead. At Pennsic War, I bought 4 1-gallon jars of varietal honey, and made 4 batches of mead with them, 3 gallons each total volume with tap water. I started the mead back around October, and have lost my OG readings. :'( Each batch was just straight honey and water, same yeast (White Labs Cider Yeast, I think). Any idea on how I can estimate the OG from that information? Many thanks for help - I haven't been able to google up a calculator that fits the info, although I could have sworn I was able to before...