Sejak

Sejak, also called dumul-cha , refers to nokcha (green tea) made of young, tender leaves and buds hand-plucked after gogu ("grain rain", 20–21 April) but before ipha ("advent of summer", 5–6 May). Also called jakseol as the tea leaves are plucked when they are about the size of a sparrow's tongue, sejak is best steeped at a temperature of 60-70 C.