When stored in a cool, dry place (like a cupboard) and placed in an air-tight container, homemade body butter can last up to 6 months without spoiling. If you're wanting to be on the safer side of things, you could also try sticking your body butter in the fridge - so long as you're sure no hands will mistake it for food! As body butters are made out of all-natural materials, there's a chance they may soften slightly in the summertime. To avoid this, keep your jars away from warm spots and direct sunlight at all times. In the event of your body butter melting, simply pop it in the fridge for a bit and re-whip once it's hardened.