Dean and Sam fill rounds with salt.
Salt can be used as protection against the forces of darkness. In mythological lore, salt is used as a purification agent and it is quite effective against some species, including:
- Lucifer's Demons
- Fairies
- Hellhounds
- Evil/Malevolent/Vengeful/Violent Ghosts/Spirits
- Wiccans inflicted With Black Magic
Uses
- Protection. Creating a line or circle of salt on the floor will keep the above species from
Dean and other inspect the salt ring around the room.
- Weapon. Using salt in shot gun cartridges will be able to disperse evil spirits, make a spirit dissipate temporarily, and inflict pain on a spirit.
- Torture. One could torture Lucifer's Demons with it.
- 'Exorcisms'. Salt is traditionally used to cast out demons or evil spirits.
- Magic . Salt is sometimes used for spells - as a symbol or method of purification.
Salt has no effect on vampires or other demons outside of Lucifer's circle.