Keeping a carved pumpkin looking fresh might sound like a losing battle, but it’s easier than you’d think. Be sure to dry the pumpkin completely, as any leftover moisture can speed up the breakdown process once it’s carved. Mix equal parts white vinegar and water in a spray bottle, then coat the inside and outside of your carved pumpkin. Use peppermint oil as a preservativeAnother natural way to preserve a carved pumpkin is peppermint oil. Place your carved pumpkin on a shaded porch or indoors near a cool window to prevent premature wilting.