What is the reason for a large number of broken leaves after frying tea? Is it because of the rain and other weather?

It is mainly caused by the broken leaves picked during picking and then not cleaned up during the production process. This requires a special machine to clean the broken leaves. It can be done manually, but it can't be completely cleaned. In addition, the whole leaf will be broken in the process of frying, because the more dry it is, the easier it is to break. This is a headache. It seems impossible to think of a broken leaf. It is normal to have three or five broken leaves in a cup of tea. I am a tea maker, and I have been looking for ways to remove broken leaves.