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.

The worker feels difficulty to move leaves because the door of machine is small.

The machine cannot be optimal.

There is a hazard of gas leaking because the valve is not tight.

Inserting the tea to the plastic bag is still manual

There is no proper reference of the process.

The environment of factory is not good.

It is hard to monitoring the temperature because the sensor is analog and should be check by other everytime.

They don't have the integrated system for the rolling machine so it's not efficient because many people should manually control the machine. They want it to be just one operator controlling it by computer.