New jelly ice cube is not plastic and won’t melt Cubes are reusable, flexible and compostable Researchers at the University of California, Davis, have developed a new type of cooling cube that could revolutionize how food is kept cold and shipped fresh without relying on ice or traditional cooling packs.

Link: https://www.ucdavis.edu/food/news/uc-davis-jelly-ice-cube-doesnt-melt