This item was an important traditional farming tool used at the time of rice harvest and is therefore valuable for researchers of traditional farming practices and agricultural society. A winnower is a device which produces a strong air current with a revolving fan to blow impurities out of the grain. It consists of thirteen parts, including  fan blades, a drum, a cabinet, a frame, legs, handles, a hopper, primary and secondary sieves with covers and screen, etc. Each part is made from different materials; for example the fan blades are made of camphor wood while the drum cover and sieve covers are made of Machilus Thunbergii. This well-preserved winnower was manufactured by Nantou county's Caotun Village Pine and receptacle store. Simple and traditional in design, it is testament to Taiwan's traditional farming practices.

Digital archive of Traditional Taiwanese  everyday items and customs
Central Taiwan University of Science and Technology: Department of Management information resources