Don't throw out used coffee grounds: The easy and simple zero-waste cleaning hack is taking over US and Canada kitchens

Mixing leftover coffee grounds with liquid dish soap creates a powerful, zero-waste cleaning paste that easily cuts through heavy grease and burnt-on food. This natural abrasive works exceptionally well on durable cookware like stainless steel pots, metal baking trays, and oven grates. However, it should never be used on nonstick coatings, polished aluminum, or marble surfaces, as the grit can scratch sensitive finishes and cause dark staining.

Raccontata daeconomictimes.indiatimes.com