AKTIVO Espresso Machine Cleaner effectively cleans espresso machines and assures you a fresh coffee every morning. Removes oily coffee residue, hard water scale deposits and soiling that build up over time that affects the taste of the coffee, and operation of the espresso machine. AKTIVO Espresso Machine Cleaner effectively cleans for better tasting coffee. Directions: Clean machine at least daily to maintain great tasting coffee via soaking filters or back flushing method on packaging.