When coffee oils build up, espresso tastes overly bitter and unpleasant and espresso machine performance is diminished. Full Circle Espresso Machine Cleaning Tablets remove these oils and residue from your espresso maker without the lingering taste or smell of vinegar. Full Circle products are odor free and all-natural and contain only environment friendly, biodegradable ingredients. Contains 8 single use tablets. Clean regularly for great tasting espresso and keep your espresso equipment operating at its best.