found that several temples were cultivating their own private tea gardens. In the 1970s, the "Korean Tea Culture Revival Movement" began in Korea. In 1973 Lee Gwilye began researching the classics, and in 1979 she founded the Korean Tea People's Association. Equipment Korean tea ceremonies follow the seasons, and the ceramics and metalware used vary. Religious traditions were influential. Stoneware was common, earthenware more frequent, mostly made in provincial kilns, with porcelain rare, imperial porcelain with dragons the rarest. Examples of equipment used in this ceremony are also discussed in the general entry Korean Ceramics as well as the more specific Korean pottery with images cited. Historically the appearance of the bowls and cups is naturalistic, with a division according to religious influence. Celadon or jade green, "punchong" (hangul:분청, hanja:粉靑), or bronze-like weathered patinas for Buddhist tea rituals; the purest of white with faint designs in porcelain for Confucian tea rituals; and coarser porcelains and ash-stone glazes for animist tea rituals, or for export to Japan where they were known as "gohan chawan". An aesthetic of rough surface texture from a clay and sand mix with a thin glazing were particularly prized and copied. The randomness of this creation was said to provide a "now moment of reality" treasured by tea masters. Glazing has very rich texture and variations between many tones occur that change colour according to light and season. Clay used was generally light, with celadon clays being particularly prized. Glazing tricks could imitate most materials: from bamboo, through pebbles in rivers, through tree-bark, to human skin, with rare and unique glazes that gave tiger's eye, peach, or snow-like attributes in deep snow-drift glazes or fine etched white porcelain. Thus enhancing memories of seasons, poems, writings, or still moments. Potting style, glazing, form vary according to date. Old designs are still kept up, and exports to Japan were significant, from the late 16th century onwards. Korean potters such as the Yi Sukkwang (이숙황) and Yi Kyeong (이경), brothers transferred traditional styles abroad that became known as the "Hagi" styles. Individual families of potters and provincial kilns provided highly individual glazes whose depth identifies the best middle Joseon jagi (Joseon wares). Summer tea equipment consisted of "katade" bowls that were tall and wide. The dimensions exposed a maximum surface area to aid in cooling boiled water. Hot water would be poured into the bowls, allowed to cool a bit,