Cafes and restaurants can store their coffee grounds so compost can be made out of it.
This coffee collector has been designed to prevent mould on the (wet) coffee grounds.
Restaurant personnel can empty the content of their portafilter in this box or they can fill it with the grounds from their coffee machines.
This instructable is part of a system called Coffee Cycle: Biodegradable flower pots out of coffee grounds! Bike pannier (front & rear) Burlap sack for bicycle basket
Tell me more about the Coffee Cycle project!