The key to this mug's heart is a humble hot drink! This clever mug reacts to heat and changes its design according to the heat of the drink that's poured in. A red pixel heart will appear when the mug is filled with a hot drink but will turn into a black heart once the liquid starts to cool. The cunning mug will change its graphics in line with the temperature of the mug which will save you from having to test a cold beverage. The handy function of the Pixel Heart Mug automatically notifies you when it's time to make a fresh cuppa. - R.K. Features: A heat reactive mug that controls the graphic displayed When the mug/drink is hot a red heart will display The red heart will turn black when the drink cools Heart shaped graphic is made of thermo graphic inks Material: Porcelain Hand wash only Do not microwave Size: Dimensions: 8.3 x 12.7 x 9.5cm
I was disappointed with the results. Poured in some coffee and let it sit a while and nothing happened. I microwaved the cup and it finally turned red. So... if you're just pouring a hot beverage into it, it probably won't work unless the liquid is boiling.
I received this mug and wanted to test it out before wrapping as a gift. SO, I put very hot tap water from the faucet and it didn't work, at all. I then poored coffee from the pot into the mug and INSTANTLY the heart turned BRIGHT red. So just an FYI the water has to be from a pot or kettle, not the hot fauset. But overall works awesome and can't wait for my husband to try it out Christmas morning!
