This Hello World-Coffee mug is ceramic and the printing is by ceramic sublimation. Although it supports the dishwasher (never the industrial dishwasher), it is convenient to wash it by hand, using gently the scourer, without 'scratching' the printed area. It is preferable to use a sponge. Never expose to fire or direct sources of heat (gas cookers, induction,...). Supports the microwave.he donation goes to KDEdu (KDE eV).

For each mug, we donate 1.00 € to KDE eV.