Pu-erh tea is made from Yunnan large-leaf varietal of Camellia Sinensis. It is typically processed into compressed cakes, bricks and tuos. Pu-erh is particularly special because it can be aged for decades or longer, always changing and (in most cases) developing more depth and texture. Raw Pu-erh (生茶) is the traditional form of Pu-erh, and is sun-dried and compressed. Ripe Pu-erh (熟茶) is fermented during a 40-50 day period under-going a mellowing process that changes the tea into something dark red-brown in color.