Keeping ice cream at 10 degrees as opposed to zero will reduce energy use and greenhouse gas emissions by roughly 20% to 30% per freezer, it said.
Unilever’s out-of-home ice cream sales declined slightly during the fourth quarter of 2022 because, the company said, some stores unplugged their freezers sooner in the year than usual.
Higher temperatures can lead to softer ice creams that stick to wrappers and slide off ice cream sticks, for example, said Andrew Sztehlo, chief research and development officer for Unilever’s ice cream division.
The warming program isn’t designed to sweat competitors out of Unilever freezers, which some shopkeepers fill with an assortment of brands that don’t carry the Unilever logo, Mr. Sztehlo said.
Representatives from ice cream makers Nestlé SA, Mars Inc., General Mills Inc. and Froneri International Ltd. declined to comment.