Description. Designed for home or office, the ember mug² does more than simply keep your coffee hot. Our smart mug allows you to set an exact drinking temperature, so your coffee is never too hot, or too cold Ember then maintains your chosen temperature for 1.5 hours so your hot beverage stays perfect. What is … Read more
On cooling, the compound becomes a light yellow metastable phase, which over 2–3 weeks turns back into original red. Many other tetrachloronickelates are also thermochromic. How do colour changing cups work? heat-sensitive paint: The Process Heat-sensitive paint or thermochromic paint contains pigments that change the coffee mug‘s color when a hot beverage is poured into … Read more