Morrisons grocery chain has become the first UK retailer to raise its freezer temperatures to -15 °C, a commitment made in line with the Move to -15 °C Coalition, which is an industry effort to increase frozen food storage and transportation temperature standards for the sake of sustainability.
The Move to -15°C Coalition advocates for the current industry standard for frozen food storage to be raised from -18 °C to -15 °C. According to the coalition, -18 °C is an archaic standard—set more than 100 years ago—and recent science shows that an increase of just 3 °C in freezer temperatures across the supply chain could greatly assuage the industry’s environmental impact by cutting carbon emissions, saving energy, and lowering costs.