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Pu'er's special geographical and climatic conditions create the outstanding quality of Pu'er coffee. Upon evaluation and analysis by the International Coffee Organization (ICO), Nestle, Maxwell and domestic coffee enterprises, Pu'er coffee is hailed as "the best coffee" which falls into the same category with Colombian coffee and rated by ICO as first-class coffee. Nestle and the Specialty Coffee Association of America considered it as one of world’s top-notch coffee superior to Colombian coffee in quality.