The best way to clean your cat litter scooper is by washing it with hot water and dishwashing liquid. To disinfect the scooper, add a disinfectant or bathroom cleaner.  When washing the scooper, remember to wear gloves and don’t wash it in your kitchen or bathroom sink. You don’t want remnants of your cat’s waste to be touching your hands or dishes or your toothbrush - not even by accident.  Use a brush to scrub the slots, and once clean, let the scooper dry before putting it away.