Our pellets are food grade HDPE and are BPA free which means they contain no phenol's or other nasty`s in the plastic.1500 grams (shown in bag below) is used to fill a tray with enough depth to give your cat comfort on the soft pellets.When dealing with dry cat droppings, a plastic scoop can be used to lift the poop, the scoop can be shaken to remove stuck pellets. Wet droppings can be removed by hand with a plastic bag. Some pellets will be wasted. We offer additional pellets should you need more.Again rinse clean the soiled area.