Fresh & Natural™ Scoopable Clumping Cat Litters hard clumping formulas offer maximum clump strength for easy removal of liquid and solid waste from your cat litter pan. See for yourself. If the clump is firm and round, it’s a good clumping clay. If it’s flat like a pancake, you probably have a product made mostly of fines and dust – and that means a mushy mess come cleanup time.