What's the reason for not coming in contact with electricity? And how do they have coffee mugs here when they are not food safe? Or I'm missing something.. thanks. "Please note that the 3D printed products are intended for decorative purposes. They are not suited to be used as toys or to be given to underage children. The products should not come into contact with electricity and be kept away from heat. Our materials, except for 3D printed glazed ceramic, are not food safe."