Kubus Light'In is designed for outdoor use. For indoor use, we recommend removing the lid. The frame and glass can be washed with mild soap and water. Be aware that the lid gets very hot and must therefore be kept away from small children and animals. Use the knob on the top to remove the lid. Do not place a hot lid on a fragile or flammable surface. Kubus Light'In cannot stand being put in the dishwasher.