How to choose a compost bin
What size sump box fits my machine?
The drip tray is located under the coffee group and collects spilled water and coffee grounds. The size varies between machine models, so check the dimensions of your current drip tray or your machine's specifications before ordering a new one.
With or without a drain?
A sump box without a drain must be emptied by hand at regular intervals, which works well for home use or smaller offices. If the machine is connected to a floor drain or sewer, a sump box with a drain connection can instead be emptied automatically, which is preferable for heavier use such as in a café or restaurant.
Which material should I choose?
Most grounds containers are made of stainless steel, which withstands moisture and coffee acids well and is easy to keep clean. Some models also have a removable grate on top that makes it easier to empty and rinse out the container.
How do I clean my compost bin?
Empty and rinse the sump tray regularly to prevent buildup and unpleasant odors—how often depends on how much the machine is used. Most stainless steel sump trays can be washed by hand with dish soap and warm water.