Comparison of Drying Techniques
Understanding Differences Between Vacuum Freeze Drying, Conventional Freezing, and Other Drying Methods

Contracting Emergency Recovery Services for Archival Records Template Open PDF file

* This list of vendors is provided by the National Archives and Records Administration
(NARA) for informational purposes.

  • Inclusion on the list should not be viewed as an endorsement of the quality of the vendor's services, and NARA will not be responsible for any arrangement made with these or other vendors.
  • Since vendor's services change over time, direct interaction will confirm current capabilities.
  • Such arrangements, including the extent and cost of the services, are purely private, contractual matters between the independent vendor and client.
  • It is up to the consumer to request references to determine whether or not the vendor's experience and services meet required needs.
  • Information on drying methods offered was provided by staff at each firm.


These are selected vendors* that provide recovery and salvage services for records.

Affiliated Warehouse Companies, Inc.
P.O. Box 295
Hazlet, NJ 07730-0295
Fax: 732-739-4145

  • Refrigerated warehouse space
  • Freezer warehouse space
  • Provides locations throughout the US, Canada, Mexico, and Puerto Rico

American Freeze-Dry
1722 Hurffville Road, Bldg. 2A
Five Points Business Center
P.O. Box 5740
Deptford, NJ 08096
866-939-8160 or 856-939-8160
Emergency: 609-458-0510

  • Drying of paper, film, and photographs
  • Odor mitigation of paper-based materials
  • Drying methods:
    • Freeze drying
    • Zorbix dryirng
    • Desiccant dying
    • Forced dry air drying

AMRestore - Contents and Equipment Specialists
796 Cromwell Park Drive
Suite K
Glen Burnie, MD 21061
800-498-8800 or 410-590-4830
Cell: 443-805-4115

  • Focus on salvage and contents of structures
  • Drying and remediation of library and archival materials, furniture, works of art, and other cultural property
  • Drying methods:
    • Vacuum freeze drying
    • Thermal drying

Belfor USA
185 Oakland Ave., Suite 300
Birmingham, MI 48009-3433
800-856-3333 or 248-594-1144
Fax: 248-594-1133

  • Drying of paper, film and photographs
  • Drying and restoration of magnetic and digital media
  • Desiccate buildings after flooding
  • Mold remediation of buildings
  • Drying methods for paper records:
    • Freeze drying
    • Ambient air drying

303 Arthur Street
Ft. Worth, TX 76107
Fax: 817-332-6728

  • Drying of paper, film, photographs
  • Recovery of microfilm and microfiche
  • Recovery of magnetic and digital media
  • Mold remediation of buildings
  • Sewage remediation
  • Desiccant and refrigerant dehumidification of buildings
  • Drying methods for paper records:
    • Vacuum freeze drying

Conservation Center for Art and Historic Artifacts
264 South 23rd Street
Philadelphia, PA 19103
Fax: 215-735-9313

  • Advice on emergency preparedness and response for paper-based collections

Document Reprocessors
40 Railroad Avenue
Rushville, NY 14544
585-554-4500 or 800-437-9464
Fax: 585-554-4114

  • Multiple document recovery services including freeze-drying

400 Bel Marin Keys Blvd
Novato, CA 94949
800-440-1904 or 415-382-2000
Fax: 415-883-0780

  • Data recovery from electronic storage devices and operating systems

EVault, A Seagate Company
201 Third Street
Suite 400
San Francisco, CA 94103
Fax: 415-432-2205
America's Support: 877-901-DATA

  • Data recovery
  • Data restoration, including from hard drives, tapes, floppies, and removable media

Eastman Park Micrographic Service (Formerly a KODAK Business)
100 Latona Road
Building 318
Rochester, NY 14652-3621
866-934-4376 or 585-500-4400
Disaster Recovery: 800-352-8378
E-mail: or

Washing of Kodak microfilm, for Kodak microfilm customers only. There is no charge for the service.  (Note: The quicker the microfilm is shipped and information is provided to the laboratory, the better the chances of minimizing loss.)

Midwest Freeze-Dry, Ltd.
7326 N. Central Park
Skokie, IL 60076
Fax: 847-679-4191

  • Drying of paper, books, photographs and film
  • Drying of magnetic and digital media
  • Mold remediation of paper-based materials
  • Odor mitigation of paper-based materials
  • Drying methods for paper records:
    • Vacuum freeze drying
    • Desiccant air drying

Polygon Group (Formerly Munters Corporation)
15 Sharpner's Pond Road
Building F
North Andover, MA 01845
Fax: 978-655-8511

  • Document drying
  • Energy recovery
  • Dehumidification
  • Indirect heating and cooling products
  • Property damage restoration
  • Temporary humidity control

Northeast Document Conservation Center
100 Brickstone Square
Andover, MA 01810-1494

  • Advice on emergency preparedness and response for institutions and individuals with paper-based collections

Rapid Refile, LLC (Document Recovery Division)
7377 William Avenue
Suite 100
Allentown, PA 18106
Fax: 610-837-4343

  • Book and document drying
  • Blueprint and map restoration
  • Archival remediation
  • X-Rays, film and photograph recovery
  • Mold remediation

Servpro Industries, Inc.
801 Industrial Road
Gallatin, TN 37066
800-737-8776 or 615-451-0200
Fax: 615-451-0200

  • Desiccate buildings after flooding
  • Mold remediation of buildings
  • Odor mitigation of buildings
  • Restoration of electronic equipment

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The U.S. National Archives and Records Administration
1-86-NARA-NARA or 1-866-272-6272