Check out the link I posted below. It may help you feel more comfortable about what you're feeding. It's really not rotting food' it's fermented like saurkraut. Anyway Good luck MagpieI do ferment my feed, but everything about fermenting goes against my nature to feed fresh food, not rotting food. I mentioned fermenting to the avian vet, and asked him briefly about the merits. He wasn't so sure that fermenting was such a benefit for chickens as the fermenters claim. I'm not sure they really do eat less. I think they waste less, which is not the same. A lot of the people who ferment, feed once a day and then the chickens have to forage for the rest of their food. I know the people who ferment swear by it. I do it, but I'm on the fence. The next time I go to the vet I'll ask him why he is not as enamored with fermenting as the fermenters are.