Custom Black Magic Mug 11 oz
Create an awesome mug with a black full-color changing mug!
It’s a magic mug!
In essence, thermochromism is the principle on which color–changing mugs and other such objects work.
Since the term ‘thermochromism’ sounds a bit technical, the paint that they coat the mugs with is called ‘heat–sensitive paint’ – a paint that is sensitive to changes in temperature.
When you pour hot stuff on it, becomes white! And starts turning into black again as when is cooling down.