What are the similarities between winnowing and threshing?

Winnowing and threshing are both agricultural processes used to separate grains from chaff and straw. Threshing involves mechanically or manually beating the harvested crops to loosen the grains from their husks, while winnowing follows, using air to blow away the lighter chaff and debris, leaving the heavier grains behind. Both methods are essential in the post-harvest treatment of crops and aim to improve the quality and purity of the harvested grain. They are often performed sequentially in traditional and modern farming practices.