Just opened my replacement jar of DPD powder and it is stupid question time again. The jar I just ran out of came with my TF100 kit a year ago February. The powder was ash gray. The new one is as white as the snow. Huh? Hard to believe the same chemical is two different colors. Have not tried the new one to see if it works any differently, but was wondering if there is (or was) something wrong with one of the powders? If I need to get a replacement, now is the time.