Hello to all, Some thoughts on this HFCS, What has hurt some hives here in Calif is , H.M.S. (acid) below 30-40 ppm is ok, but some have had loads in the 300 plus ppm. Time & heat is the mained cause, below 90 degrees your ok for a few weeks. One keeper fed it in pollen sub mix (20,000) rounds on bees before he could find the problem.This show up in HFCS 75. Keith Jarrett -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---