No one in this era had a mechanical grain thresher, and Mo Yan didn't know how to make one, so she could only rely on the most primitive method, using physical strength to shake the grains off. Fortunately, the rice was very ripe, and it didn't require too much effort to shake clean, but repeating the same motion continuously also made her arms sore and left her body lacking strength.
Several fellows, having eaten their fill, lined up side by side on the ground to watch Mo Yan labor. They couldn't lend a hand in such matters, and could only watch helplessly.
After drinking spirit spring water twice to replenish her strength, Mo Yan finally managed to thresh the half-acre of rice grain after several moments. She then spent several more moments sifting through it with a sieve to remove broken leaves, and the remaining grains were stored in hemp sacks.