All Puer tea begins with Mao Cha, or "rough" tea. This is leaf that has gone through the initial process of plucking, wilting, "killing green", bruising, and then drying. These steps must be performed immediately after plucking and therefore typically take place on the mountain close to where the tea was harvested....


http://www.taooftea.com/display.php3?id=&num=33


Edit:
A tiez clanok o maocha na puerh.cz od nemenovanych znamych ceskych cajovnikov :P :D
http://puerh.cz/?tag=mao-cha