Operation of the vending machine
Method
1. Unlock and open the automatic door with the key.
2. Pull out the coffee grounds container.
3. Empty the coffee grounds container (if necessary, remove
and dispose of the bag of coffee grounds container).
4. Clean and dry the coffee grounds container with hot water
and a sponge.
5. For hygienic reasons, insert a new coffee grounds container
bag into the coffee grounds container after cleaning.
6. Insert the coffee grounds container.
7. Close the automatic door and lock it with the key.
8. Confirm the question "Have you emptied the coffee grounds
container?" with [YES].