By "Candying" I take it to mean that the honey is crystalizing? I have honey from July that shows no sign of crystalizing. I make sure all of the extracting equipment is clean and dry when I start. I also make sure the frames are nearly 100% capped. I store the extracted honey in a dry place for 2-3 days to settle out before bottling. Bottles are clean, and stored in a closet in the house. My honey partners honey went off with in a month. Her frames were not as well capped, and she stored the honey for a few weeks in a garage before bottling.