Well, dear Melitta employees among the reviewers ... I can not share your euphoria. This 4th cleaning passage with original Melitta cleaning tablets in my wonderful Melitta Caffeo CI leads to the same result as the cleaning before: Half the tablet can be found after the completion of cleaning in the pulp container. Whether this result is nevertheless leads to 100% strength cleaning, I can not answer with certainty, but I venture to doubt heavily. Conclusion: The tablets are no better and no worse than much cheaper no-name products. PS: Because the machine always looks a little cleaner after cleaning than before, actually three stars would be appropriate for this product, but this professional reviewers annoy me massively ....