An old metal jerry can containing fuel for oil lamps.
A jerry can is a large container which can hold up to 4 liters of kerosene.
Unlike lantern fuel, Jerry cans are not destroyed or generated in any way. They can only be found in the world and an empty Jerry can remains in the player's inventory when emptied.
A Jerry can in the player's inventory will collect any lantern fuel created from cooking fish if not full, preventing the spontaneous generation of a bottle of lantern fuel. It will also collect kerosene from harvesting a storm lantern.