Because there isn't any automatically system they have to turn off the machine manually when the temperature over than 100,°C

Worker said if cleaning the machine with hand(manually) there still any leftover left. So it need another tools or item for clean it properly

Because there is no automatically tools for fill the machine fuel, so we want to make automatically machine so the worker will be easy

There are many insects inside the factory, and caterpillar in the leaf because the worker not clean the leaf before

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They don't have automatic curtain, so they do it manually

They cant protect tea the leaves at night and they keep the lights out

They don't have proper tool so they count it by experience

They don't have some tools and so they have to check the temperature manually.

The machine is hot and dangerous because the process needs heat and must rotate.