Silver, Salt, Holy Water Test
As many supernatural creatures such as demons and ghosts are vulnerable to silver, salt and/or holy water, these substances are used as a test by hunters to help determine whether someone is human. It is a pretty fallible method -- see below for the many times when it failed to detect monsters.
- 1 Episodes
- 1.1 1.22 Devil's Trap
- 1.2 2.22 All Hell Breaks Loose: Part Two
- 1.3 2.14 Born Under a Bad Sign
- 1.4 4.01 Lazarus Rising
- 1.5 4.19 Jump The Shark
- 1.6 5.02 Good God, Y'All
- 1.7 5.04 The End
- 1.8 5.06 I Believe the Children Are Our Future
- 1.9 5.15 Dead Men Don't Wear Plaid
- 1.10 6.01 Exile on Main St.
- 1.11 6.18 Frontierland
- 1.12 6.19 Mommy Dearest
- 1.13 7.08 Season Seven, Time for a Wedding!
- 1.14 7.17 The Born-Again Identity
- 1.15 8.01 We Need to Talk About Kevin
- 1.16 8.12 As Time Goes By
- 1.17 9.11 First Born
- 1.18 10.03 Soul Survivor
- 1.19 10.06 Ask Jeeves
- 1.20 10.07 Girls, Girls, Girls
- 1.21 11.18 Hell's Angel
- 1.22 13.02 The Rising Son
- 1.23 13.18 Bring 'em Back Alive
- 1.24 14.06 Optimism
- 2 See also
When Sam and Dean find John after he was abducted by demons, Sam splashes him with holy water to confirm that John is not possessed. Holy water, however, proved to be ineffective against a demon as powerful as Azazel, and John's possession went undetected.
After Dean finds Sam holding Jo at knife point, Dean splashes Sam with holy water to confirm that he is possessed by a demon. Meg, in Sam's meatsuit, escapes and heads to Bobby's house, where Bobby discovers that Sam is possessed when he adds holy water to Sam's beer. Later, after Bobby secures the possessed Sam, Dean splashes Sam again to try to get the demon to talk.
When Bobby finds a resurrected Dean on his doorstep, he assumes he is a supernatural being and tries to kill him. Dean tries to prove his identity by cutting himself with a silver knife, and they embrace. Bobby then checks whether Dean is possessed by dousing him in holy water.
When Sam and Dean meet Adam, who claims to be John Winchester's son, Dean tests Adam with silver and holy water. He doesn't react to them, however he is not human, and is later revealed to be a ghoul who killed and ate the real Adam.
After Samuel Colt kills some demons, he is suspicious when Sam arrives, and so he splashes Sam with holy water.
Sam and Dean find two orphaned boys named Joe and Ryan Silver. Dean says there are "a couple of dozen tests" to make sure they are human. It is unclear which ones Dean uses, but he fails to detect that Ryan Silver is a monster of the type Dean has dubbed "Jefferson Starships."
Dean returns from Purgatory and when he first meets Sam, Dean tests him with holy water, borax, and silver. Then, when Sam refuses to test Dean, Dean proves it is him by testing himself the same way. Later, Kevin squirts them with borax or holy water (it is not specified), however, Dean states that they are not Leviathans.
Sam and Dean test Henry Winchester with holy water and silver.
Tara tests Dean by splashing holy water into his face to see if he's possessed.
In order to get the upper hand, Cole splashes Dean with holy water because he believes that Dean is a demon, unaware that Dean is human again and that holy water no longer affects him.
Jack uses silver and holy water to test whether Harper Sayles is a demon or monster, first by placing a silver coin on the floor of her apartment for her to pick up, and then by dousing his hands in holy water and touching her hands.