BusinessCooling milk with solar powerTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness07/13/2017July 13, 2017Researchers in Germany have come up with a special solar-powered canister to keep milk cool for up to 12 hours. This could be a revolution in rural areas, where electricity is often a luxury.https://p.dw.com/p/2gV36Advertisement