Coffee Grounds - Coffee by-products can be used in the garden and farm as follows: * Sprinkle used grounds around plants before rain or watering, for a slow-release nitrogen. * Add to compost piles to increase nitrogen balance. Coffee filters and tea bags break down rapidly during composting. *Dilute with water for a gentle, fast-acting liquid fertilizer. Use about a half-pound can of wet grounds in a five-gallon bucket of water; let sit outdoors to achieve ambient temperature.