The fats and essential vitamins and nutrients are sprayed onto kibble and that's the first thing exposed to go bad. A little subtle rancidity is detectable to cats.

If you dump kibble into a plastic pin: thosr rancid fats can leach into the plastic and remain there tainting all subsequent kibble with at least the odor of rancidity.

If a bag sits open unsealed for a week it'll be stale as all hell and much less healthy.

[–] Ithi@lemmy.ca 3 points 1 week ago

Oh damn I didn't know about the plastic container thing. Thankfully I haven't been doing it too long yet. Only just started my older cat on dry food as she just doesn't eat enough anymore otherwise.