Hello. I have three pullets currently eating Blue Seal Grower, and can't seem to find this feed in anything smaller than 25 lb bags. The 25 lb bag lasts more than a month, and I'm wondering whether it will go rancid in very hot weather. I've had high-fat/high protein horse feeds go bad in the heat, if left around too long - hence the question: should I store grower mash in the house where it's cooler, or is the horse barn, where the coop is, okay? Thank you.