International Laboratory Freezer Challenge
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Room Temperature Sample Storage Options

The company GenTegra has options for room temperature sample storage and shipping of DNA and RNA. 

If you know of other room temperature sample storage options, please let us know at programs@mygreenlab.org
​

Temperature Monitoring

Guide to Cold  Storage Monitoring from Elemental Machines
​

Evidence that -70 C is a safe storage temperature for various samples

Long-Term Preservation of Fungal Isolates in Commercially Prepared Cryogenic Microbank Vials
Espinel-Ingroff, Montero, Martin-Mazuelos
DOI: 10.1128/JCM.42.3.1257–1259.2004


Long term stability of paraoxonase-1 and high-density lipoprotein in human serum
Beekhof, Gorshunska, Jansen


-70 is the new -80 PDF including testimony from scientists storing samples at -70 C
Dr. Teun Bousema at Radboudumc, the Netherlands (updated May 2022)


​Additional Publications (including a few posters) for download

Smart Notes: Reducing Energy Usage (Thermo Fisher Scientific)

-70 C Database Information

Contribute to the updated -70 C database using this Google Form. Add as many entries as relevant for your lab.

View the updated -70 C database

Spreadsheet started at the University of Colorado Boulder of samples currently being stored at -70 C in labs across the United States (2015-2022)

Studies showing stability of DNA at -20 C

Poster: Stability of Genomic DNA at Various Storage Conditions
Wu, Cunanan, Kim, Kulatunga, Huang, Anekella - SeraCare Life Sciences
The Freezer Challenge is a program coordinated by the non-profit organizations
​My Green Lab
® and the International Institute for Sustainable Laboratories, and sponsored by various companies with an interest in promoting the most energy efficient cold storage options.
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  • Register
    • Site Coordinators
  • the challenge
  • Sponsors
  • Resources
  • Awards
    • Award Winners 2022
    • Award Winners 2021
    • Award Winners 2020
    • Award Winners 2019
    • Award Winners 2018
    • Award Winners 2017
  • Contact
  • MGL Home