How to test litter preferences?

Published: October 14, 2025
Updated: October 14, 2025

To prevent future avoidance of the litter box through wise litter choice, you need to determine your cat's litter preferences. The best way is to do a "litter cafeteria" test with three or four identical litter boxes in a row, with each having a different kind of litter. This will give you a scientific approach to how to determine actual preferences without any guesswork, and indicate the most desirable choice for you.

Setup Protocol

  • Use identical low-sided boxes for consistency
  • Position boxes in a quiet accessible location
  • Fill each with 2 inches of different substrates

Observation Phase

  • Monitor usage patterns for 3-5 consecutive days
  • Track first-choice boxes after meals
  • Note digging comfort and burying efficiency

Evaluation Metrics

  • Count successful eliminations per box
  • Record time spent digging/burying
  • Check for tracking outside each box

Provide a variety of substrate options when testing. Use non-clumping clay for kittens, silica crystals for maximum absorbency, recycled paper pellets for those cats sensitive to dust, and plant-based alternatives such as walnut or corn. Be sure that the same depth and cleaning schedule are maintained across all test boxes.

Litter Type Preference Indicators
Litter TypeSilica CrystalsPositive SignsRepeated use, minimal trackingNegative Reactions
Paw shaking, hesitation
Litter TypeClumping ClayPositive SignsThorough digging, full burialNegative Reactions
Sneezing, rapid exit
Litter TypeRecycled PaperPositive SignsComfortable stance, no avoidanceNegative Reactions
Light scratching, incomplete burial
Litter TypeWalnut/CornPositive SignsNatural digging motionsNegative Reactions
Sniffing refusal, accidents nearby
Test each litter for at least 3 days

Reassess preferences every year, or whenever major life events occur, such as moving to a new home or getting new cats. Cats find new things unpleasant from time to time, which will merit making changes. Keep notes on the results of tests, comparing them over time to check developing preferences for litter and note cats' acceptance.

Read the full article: Ultimate Guide to Litter Box Training Success

Continue reading