Miracle mug: coffee does not cool down, beer does not heat up
German scientists have developed a thermal mug that maintains the ideal temperature of the liquid. Specialists from the Fraunhofer Institute of Building Physics managed to create dishes in which hot drinks do not cool down, and cold ones do not heat up. The developers used a material with an easy transition from one phase to another. It is widely used in construction to maintain the optimal temperature in the premises in the hot season. This material has the ability to accumulate heat from the sun and give it away after sunset. According to scientists, high manufacturability allows you to maintain the ideal temperature for the drink for at least half an hour. The material from which it is made first accumulates heat from coffee or tea, and as it cools, it begins to return it. In the near future, it is planned to launch miracle mugs into mass production. It remains only more profitable to sell the patent of one of the manufacturing companies.