My honey is showing at the 19.2% moisture content, by refractometer. I checked it with another refractometer, and it reads the same. I put it in a room with a dehumidifier and a pail heater, but the % moisture is not coming down. I have had the dehumidifier going for a few days, but only put the pail heater in use yesterday. Any suggestions to bring the moisture content down into the 18% or lower range?