Commonly used by Rabha tribes in northeastern India, The bamboo winnowing fan is a traditional equipment that separates shell from grain shortly after harvest. A winnowing process is an important part of the post-harvest procedure. Its simple but effective design allows the flat and open side to catch wind for the winnowing process while the other side is raised with more curves toward its end. The fan is skillfully made from fine bamboo splits that are woven with precision to form a sturdy body, whereas a broad bamboo strip is sewn along the margin to ensure its soundness and to provide extra support while in use.
In addition, rubber pieces are stitched at the two corners of the fan, perhaps to provide grip and comfort to the fan, especially for prolonged use. The Rabha tribe represents a unique culture with a rich tradition of agriculture. The bamboo winnower demonstrates the tribe's deep connection with nature, a reflection of their craftsmanship, and a purely sustainable utilization of locally available materials. The fan's simple and functional design gives it an indelible character for sustainable and resourceful acts of indigenous cultures.