Propane can be stored in a tank for decades—as long as the tank is in good condition. Check for rust, keep the valve closed tight, and store it upright in a cool, dry place away from direct sunlight. That’s it. No scientist degree required.
So go ahead, buy that extra tank on sale. Hoard it like a squirrel with a secret stash. Your future self—the one hosting a spontaneous cookout—will thank you. Just remember: the gas lasts forever, but the tank doesn’t. Treat it with a little love, and your propane will be ready when you are.