Examples
Worked examples
- Is an instance
A lab adopts a one-page rack map kept on the freezer door so sample retrieval takes under 30 seconds.
- Is an instance
An institution awards an annual prize to the lab with the largest year-over-year ULT energy reduction.
Counter-examples
Looks similar, but isn't
- Not an instance
Random ad-hoc sample placement with no inventory is the antithesis of -80 freezer management.
- Not an instance
Disposing of a freezer at end of project without sample transition is poor management.
Editorial commentary
Best-practice -80 degC freezer management treats each unit as a managed asset with a named owner, a digital sample inventory, an annual defrost and clean schedule, and a setpoint review (most modern samples are stable at -70 degC). Doors are kept closed except for indexed retrievals using a written rack map. Older units are tagged for replacement when energy use exceeds defined thresholds. The discipline is foundational to both the Freezer Challenge and LEAF Gold criteria.
References
- My Green Lab cold-storage toolkit; International Freezer Challenge published case studies.
Also known as
ULT freezer management · -80 management · Minus-80 stewardship
Machine-readable encodings
Use in your systems
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