Once upon a time, there was a study that found that raising temperatures in ultracold freezers to minus 15 degrees Celsius versus the typical minus 18 boosted energy efficiency and had no effect on the quality or life span of the frozen food. Researchers asked cold storage companies and shippers to consider this adjustment to reduce carbon emissions.
The initiative has taken off in Europe. Nomad Foods, Europe’s leading frozen food manufacturer, has...
https://www.freightwaves.com/news/running-on-ice-the-cold-chain-needs-a-little-warmup