Coffee is a wide produced and consumed drinking all around the world.
After the use, exhausted coffee filters (wet coffee powder) are a very nutrient fertilizer. This brought some people to collect the exhausted coffee powder and to use it as fertilizer for domestic plants.
Does anyone know about any country, city, or village that implemented a coffee separate collection with the aim of collecting the exhausted coffee and bringing it to the nearest crop fields in order to use it as fertilizer?
Is implementing such a separate collection worth it?