This spherical underground refrigerator uses the insulation effect of soil and the cooling effect of groundwater to maintain the internal temperature of the refrigerator at about 10°-12°. The refrigerator needs to be buried in the soil one meter deep from the ground. A constant temperature of 10°-12° can extend the preservation time of food. There are multiple shelves inside, which can be used to put drinks, vegetables, fruits, wine and other foods. The most important thing is not to It requires electricity and is environmentally friendly and practical.
