In 2007 and less in 2008, I powder sugar dusted my bees a few times to counter the varroa mite. In 2009, I no longer sugar dusted as the hive genetics seem to have adjusted to this latest parasitic threat. The harvested honey from the hives is filtered down to 200 microns. Some of the honey came out cloudy last year and again this year. The cloudy honey did seem to crystallize more readily but the cloudiness could be removed by heating the honey. No scum observed on the top though when the cloudiness was gone. Powdered sugar has starch in it, which may not be filtered out at 200 microns. Is there a relationship between cloudy honey and powdered sugar residues - anybody know?