Okay, this may be a stupid question but how would I know if my chicken feed has gone moldy or bad? Visible mold and/or a rotten smell are obvious signs but is it possible that feed could go bad without the human knowing it? I have my feed stored in a 5 gallon bucket in a shed outside. The remaining is kept in the original bag in the corner of the shed. I have never seen any indication of moisture in the feed.