What is winnowing? When do we do it?
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Winnowing: The process of separating heavier and lighter components of a mixture by wind or by blowing air is called winnowing. This method is used by farmers to separate lighter husk particles from heavier seeds of grain.
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- Chaff is removed from grain during the winnowing process. It may also be used to get rid of bugs in grain that has been kept for a long time.
- In grain processing, winnowing normally comes after threshing.
- In its most basic form, it entails tossing the mixture into the air, allowing the lighter chaff to be blown away by the wind while the heavier grains to fall back down for retrieval.
- A winnowing fan (a shaped basket shaken to elevate the chaff) or a tool (a winnowing fork or shovel) on a mound of harvested grain were examples of techniques.
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