Color Changing Black Witch Brew Mug 10oz

Heat changing Ceramic coffee mug, before pouring hot drink, the mug looks like a normal mug. After you pour hot liquid above 140 degrees F, at which temperature the flame on the cup will change color, deepening to an orange-yellow color. The mug holds 10oz of liquid. Hand wash only to maintain quality. Very nice gift for a witch or anyone! I love mine! Blessed Be!