For what it's worth, you don't have to use up your FF every few days. I mix mine in a 35 gallon feed drum and it's been going for over 3 years now. My hen only get fed in the mornings. If there's feed left in the troughs at the end of the day, we make sure to give them less the next day (mix the old with the new in the morning). I used to have problems with lots of squirrels (and probably rats at night) in the run every day, but since I started adding cayenne pepper to the mix, no more squirrels!