Residue can remain on surfaces
Waste and damp litter can leave residue on a pan or in corners and joints. Surface scratches and difficult-to-reach areas may make thorough cleaning more challenging.
The litter and routine matter
Different litters manage moisture and odor differently. Scooping frequency, litter depth, replacement schedule, number of cats, and ventilation can all affect the litter area.
Where material fits
Stainless steel is hard and non-porous, which may make long-term cleaning easier in some use cases. That does not make a stainless-steel litter box odor-proof. The box still requires regular care, and its full design—including seams and upper components—matters.
A practical approach
Scoop consistently, follow the litter and product care instructions, clean reachable surfaces, and replace worn components when they can no longer be cleaned effectively. Use products that are appropriate for the litter box and your household.