Salt from Lot’s Wife

Origin
The narrative of Lot's wife begins after two angels arrive in Sodom and are invited to spend the night at Lot's home. At dawn they warn Lot and his family to flee as there was an impending disaster on the city. The angels commanded them to run but not look back. Lot's wife, however, ignored the command, looked back and turned into a pillar of salt. There is a pillar of salt named "Lot's Wife" near the Dead Sea in Israel.

To take with a grain of salt is an idiom which means to view something with skepticism and not to be taken literally.

Effects
Turns organic material into salt. It doesn’t always work so must be taken with an air of suspicion and doubt.

Collection
Is in a salt shaker with a label saying ‘If spilled toss over shoulder’. The label cannot be removed and seems to be there to attempt to get people to place in palm of hand.