I have lost a couple of hives due to robbing this fall and was cleaning up the frames and equipment for next spring and had a couple questions: 1) how long do you need to leave frames in freezor to kill larva and eggs from wax moths, and 2) is there a consensus on when you should replace drawn foundation i.e. I know age is one issue but what about frames that have drawn foundation and are fairly new but have approximately 1" of the foundation ate along the bottom--is it better to replace the drawn foundation or would you continue to use it?? Any thoughts would be appreciated. Thanks