Ka-Kleen ™ was created for effective cleaning in the daily back flush process. Ka-Kleen ™ does not contain degradable, Phosphates, silicone ammonia or abrasives. It is absolutely environment-safe. This unique formula cleans group heads, shower screens, porta-filters, and steam wands without soaking or scrubbing. Unlike other products Ka-Kleen ™ leaves no odor behind for fresh and pure taste of coffee. This liquid solution was designed for maximum solubility and rinse ability.