cat in the litter box with images of mineral and bentonite litter that can be used. Crystal litter not recommended

Best Non-Toxic Cat Litters for Automatic Litter Boxes

Melissa Sarmiento

If you use an automatic litter box (like the Happi Scooper), the type of litter you choose really matters. Some litters clump better, some smell fresher, and some are safer for your cat’s health. Let’s look at a few of the best non-toxic options that work well with self-cleaning litter boxes.



1. Clay Clumping Litter

  • Most popular and easy to find.

  • Clumps fast, so the scooping system can grab waste quickly.

  • Look for low-dust versions to keep things cleaner for both you and your cat.



2. Corn-Based Litter

  • Made from natural corn kernels.

  • Non-toxic and usually biodegradable.

  • Works well in automatic boxes, but make sure it clumps firmly (some brands are better than others).



3. Wheat Litter

  • A natural choice that’s safe if your cat licks its paws.

  • Clumps nicely and keeps odors down.

  • A good eco-friendly option that works with most self-cleaning systems.



4. Wood-Based Litter (Pine)

  • Made from pine sawdust or pellets.

  • Has a fresh, natural smell.

  • Some pellet styles also don’t clump, so check your litter box instructions first.



5. Paper Litter (Bonus Option for Sensitive Cats)

  • Very gentle and non-toxic.

  • Doesn’t clump, so it’s not the best for most automatic boxes.

  • But this could be a good short-term option if your cat has allergies or paw sensitivity.



Things to Avoid in Automatic Boxes

  • Crystal litters: These don’t clump, so self-cleaning boxes can’t work correctly.

  • Tofu litters are popular, but many machines (including the Happi Scooper) don’t scoop them well.



Final Scoop


The best choice is a clumping, low-dust, non-toxic litter from clay, corn, or wheat. This will keep your cat safe, your home fresh, and your Happi Scooper doing its job without a hitch.


👉 Pair the right litter with the Happi Scooper and you’ll never scoop by hand again.

Back to blog