0.5 kilograms. Dry ice is solid carbon dioxide, storage of dry ice to use a special dry ice insulation box or small quantities of dry ice using foam boxes, 10 kg of dry ice in the insulation box to store a night party roughly consumed about 5% or 0.5 kilograms, 10 × 0.05 = 0.5 kilograms, is at room temperature in a simple, low-cost and more ideal preservation methods.