How Long Does Propane Last In A Tank Unused?
How Long Does Propane Last In A Tank Unused? How Long Can You Store Propane: Indefinitely. You can store propane indefinitely. As previously stated, LPG-propane does not go off or bad and the propane shelf life is unlimited. How long can a propane tank sit unused? Rufus Youngblood, Director of Safety for Ferrellgas and a