From the University of Rochester Library, the University of Illinois at Urbana-Champaign Library, and The Library of Congress:

  • Prop up the books vertically by fanning out the pages to promote air drying of pages. You can also put paper towels between the separated pages.
  • Books can be placed in a plastic zip lock bag or stacked in a crate spine down and frozen to keep the material stabilized if you need more time to carefully dry the books. Rapid freezing to -15 to -20 degrees is necessary to minimize damage from ice crystals, so be aware that home freezers can’t always achieve this. A food storage freezer is ideal for this method.
  • If you see signs of mold, be careful to separate these books from others because the mold can spread.
  • If possible, put the damaged books on a hard, non-absorbent, color-fast surface to prevent moisture from being retained under books and to keep them from sticking.
  • Don’t put weights on the books, let them dry out first. Once they are almost completely dry, they can be stacked to smooth out wrinkled pages and warped pages.
  • Use fans to speed up drying. Good ventilation is important to prevent mold.