Cold pot is a terracotta pot inspired by natural systems to gradually lower the air temperature through the process of evaporation. Based on the ‘bio air-conditioning’ the porous terracotta surface acts as a heat exchange; it absorbs water from the inside and sends if to the outer surface. On contact with air, the water evaporated. The change from a liquid state to gaseous one results in the cooling of the object and consequently the inner aluminum pipe, where air circulates. It is low maintenance, and requires just two liters of water.