On/Off Mug

This heat sensitive mug changes its appearance and turns ‘on’ when it is heated up, say by hot water. A fun gimmicky thing to buy for home or the office. I know it certainly applies to me in the morning when I do not have my caffeine!

On/Off Mug


  • Changes color when it is heated up and the text changes from off to on.
  • Quality mug perfect for coffee, tea and hot chocolate.


Amazon: 3.5/5

Its a good mug really and not bad for the price with only a few small issues. The first is that it is a little smaller than the typical-sized mug. Also, some people have reported that it does not remain as bright over time, basically the color change is not as apparent over time, but this is only a minor issue really.

Overall: 3.5/5

Product Name:

On/Off Mug