> This being due to the fact that I do not know if the refractometer is > correctly set. I need to know if my 18.2% humidity level in my Canola > honey is really 18.2%. > Is it possible to create a standard medium of known moisture %, one that > may be created by the average beekeeper in domestic conditions? There's no need to create one - standard fluids exist for the purpose. Here's one source, another may be the maker of your refractometer. http://www.bs-ltd.com/ltd/calibration/calibration_ref.html Or, if you are really cheap, take your refractometer to a honey show, and calibrate it against one of the honey judges. Once calibrated, I paint some red fingernail polish over the adjustment screw to eliminate any possible bumping, and act as a "calibration seal". This worked great with my old Atago, but I have not owned my new one long enough to know if it will stay within calibration for a season. So far, so good... jim (If apes really can communicate with humans, why have none asked why they are being held captive?) :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::