I’m wondering once you open a bag of dry food how quickly do you have to use it? I feed mostly wet and find myself sometimes feeding dry when I don’t want to because I am afraid that if I don’t use it within 4 to 6 weeks that it will go rancid. I had my cats on wet food and Ziwi Peak dry. Because of one day that my cat Bella didn’t eat much I panicked and purchased Dr Elsey’s which I fed before. But as soon as my package arrived from the Chewy company Bella was eating the Ziwi Peak and Mickey was happy on wet food only. Now I am stuck feeding Dr Elsey’s which is kitty crack to both cats and apparently I have to hurry up and feed it. It’s only a 2 pound bag and I am trying to limit it to 1 or 2 tablespoons per day per cat. I just don’t want to mess up their diet and turn them into kibble junkies again.