I actually work for Purina and we did have problems a few years back with mold in the summer time but we've since fixed that and in Texas we haven't had that problem as long as the dealer is getting it fresh from the mill and not trying to stock too much at the store. As for the cost, what I've told the feeders that I work with is I understand the concern but and extra 250 to 400 dollars, on something you've already invested so much time and money into, is not that much.BRF said:thanks. Does anybody have mold problems like mentioned above in the midwest?