There are a lot of problems happen in the marketing situation such as there is no direction sign, there is not enough promotion, etc.

The problems appear at the roasting situation is kinda simple but it's important. The problems are the smoke, small bawl for roasting, etc.

The problems of drying situation are they take times to dry the coffee when it's raining, the coffee bean is messed up on the floor, etc.

The first situation we face is about harvesting that make another problems they are plant disease and more insects appear.