Follow these tips to keep your horse’s feed from going bad in hot, humid weather:
Don’t stockpile. Buy and store no more than a 10- to 14-day supply of grain mix or commercial feed.
Store properly. Keep feed in a cool, dry, well-ventilated place, away from direct sunlight.
Allow circulation. Place feed bags on pallets rather than on the floor; ideally, set them up on end and slightly apart to enable air flow. Don’t place feed in airtight plastic bins.
Be choosy. Pelleted feeds tend to keep longer than sweet feeds. Check ingredients for mold inhibitors.
Source: Kentucky Equine Research