This product is very simple to use, effective, except perhaps for stubborn stains such as tea tannin (but nothing beats the elbow grease for this). I used to put a minimum, for the environment and because in the end, it's still the dishwasher that did most of the work, and avoids fouling device unnecessarily. I appreciate the absence of phosphates (but maybe this is now the norm?). When it is almost empty, I remove the plastic film, I removed the cap that I empty as possible in where to put the product, and I place it among small utensils, I return the bottle next to the plates and I start my tour, and I have no waste product, I can then take a truly empty bottle packaging.