Purple clay is natural clay unique to China, discovered around Taihu in Jiangsu during the Northern Song Dynasty. (1000-1200 A.D.). When fired, the purple clay assumes a fine and sandy texture that retains the temperature of the tea held inside longer than ordinary ceramics.This Purple Clay Coffee Press is a one-of-a-kind coffee pot that makes use of Purple clay’s unique material qualities. The unglazed sandy texture of natural purple clay is reminiscent of the warmth of the earth. After extended use, the purple clay coffee pot takes on the fragrance of your preferred coffee blend and the warmth of your hands. Your memories will fill this coffee pot and cup, making them your own.