Handpicking is a simple method of separating slightly larger, unwanted materials from useful ones by using our hands. It’s commonly used when the unwanted substances are easy to see and pick out, such as removing stones from grains. This method ...
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Handpicking is a simple method of separating slightly larger, unwanted materials from useful ones by using our hands. It’s commonly used when the unwanted substances are easy to see and pick out, such as removing stones from grains. This method ...