The set of coffee grinder made of wood is simply designed as an arc base inside the bottom with a piece of zinc woven with sparse holes to create friction when grinding coffee. In the middle, there is a round wooden wheel for rolling and a short wood stuck in the middle of the wheel. This grinder only contains a maximum of 300 gram of roasted green coffee beans, ground in 15 minutes with a fineness of 2.5 micrometers. This set of coffee grinder exudes a simplicity but not monotonousness, accompanied by a wooden stick used to grind coffee into fine powder, like the rhythm in the couple's life, the crystallization of the heaven and earth and people from ancient times. The wood material is rudimentary but extremely strong forming a stable couple.