I also cannot smell or taste as with Stormcrow's issues, but I can 'taste' odors, some not all, in the back of my throat. Cannot smell anything cooking, flowers, herbs, rain, spring air, etc. but I can smell rancid nasty stuff like diesel fuel, dog poop, some molds, and something burning in the oven because I forgot about it. This makes smelling chicken feed impossible. With such a small flock, it takes forever to go through a 50lb bag and I've yet to find smaller bagged options. We store it in an air tight (supposedly) container in the house on a tile floor. The temperature is usually the same within a few degrees, no humidity in the house either. Garages and porches are out of the question here due to the moisture content of the air. I guess if it goes stale or moldy within a couple months if the girls are still eating it, I'm not going to worry. I suspect if something smells funny to them, they won't eat it. I'm guessing.