Butter extract method is: first a little hot yak milk, butter and then poured into the bucket (the local known as "snow Dong"), beating the force from top to bottom, back and forth hundreds of times, up to oil-water separator milk.
To Wanfofour seasonsarebeautiful lake and springtherearepeachtobacco water, cool the summer there are green trees and autumn leaves are Choi Lam, Dong-mei hasSnow and red plum blossom.