Cold pot is a terracotta pot inspired by natural system 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 it to the outer surface. On contact with air, the water evaporates. The change from a liquid state to gaseous one results in the cooling of the object and consequently the inner aluminium pipe, where air is circulates. It is low maintenance, and requires just two litres of water.