Limón de Pica is an unusually acidic lime from the oasis town of Pica in Atacama Desert. Limóns de Pica have had an appellation of origin since 2010.[1] The environment where the limes are grown has a mild microclimate that does not display the typical high temperature oscillations seen in many of the world's deserts.[2] Six producers, compromising 20% of the agricultural output of the oasis, are organised in Oasis Pica Coop. As of 2019[update], the coop was working to certify its products as organic and enforce the appellation control of limón de Pica.[1]