You would be surprised how long it will last. The heat doesn't bother it as much as rain. On our South Georgia bear lease we keep about four barrels out. Just back up to where you want them, take the top off and roll the barrels off the truck. Make sure they are laying on their side so the rain doesn't get in it so badly. Everything in the woods will eat it. I think they said we fed about 75 or 85 barrels last year. Funny thing tho, the bears don't have much hair on their heads, I'm guessing the acid or something in the peanut butter eats the hair up on their heads.