The same mineral that seasons and preserves our food serves an equally important preservation function for inedibles: film, documents, and other artifacts.  For example, at the Hutchinson Facility of Underground Vaults and Storage, hollowed-out salt mines provide humidity-stable, fire-resistant storage for valuable archives.  You can take a virtual tour of the facility and learn about the special preservation properties of salt storage in this Discovery Channel video:

How Stuff Works: Episode 9 – Salt Storage

If you’re in the area, you could visit the salt caverns in person at the Kansas Underground Salt Museum in Hutchinson, KS.

Here at the ISU Library Preservation Department, we’re grateful for the readers and comments that make this blog a rewarding endeavor for us.  We’ll be back with a new post next Monday, and until then, we wish you a very happy (and well-seasoned) Thanksgiving.