Compostable cat litter bags come in two formats: tray liners that line the box before the litter goes in, and extra-large disposal bags for daily scooping. Both are plant-based and certified OK Compost HOME by TÜV Austria. Which one your routine needs depends on whether you're handling a daily scoop or a full weekly change.
You've already switched to wood pellet, paper, or tofu litter. Good call. Then you scoop the clumps into a standard plastic bag and bin it, and that bag will outlive your cat by about three centuries. The litter was the easy decision. The bag is the part nobody told you to think about.
GIVE A SH!T® certified compostable tray liners go into the litter box before the litter, so the full box change lifts out in one pull. The XL compostable litter disposal bags cover the scoop-and-bin routine. Both are available on subscription.
Compostable cat litter bags: tray liner or disposal bag?
The choice depends on your routine. Tray liners sit under the whole load and lift out in one motion on change day. Disposal bags handle each daily scoop individually: seal and bin, repeat. Most cat owners with a daily-scoop, weekly-change setup end up using both.
| Feature | 📦 Tray liners | 🛍️ XL disposal bags |
|---|---|---|
| Best for | Full weekly box change | Daily scooping |
| Dimensions | 36 × 19 in | 17.7 × 11.8 in |
| Film thickness | 2 mil | 18 micron |
| TÜV Austria cert | OK Compost HOME | OK Compost HOME + INDUSTRIAL |
| Built-in drawstring | ✅ Yes | ❌ No (tie closure) |
| Pack sizes | 10, 20, or 30 | 30, 60, or 90 |
| Starting price | From $12.99 | From $12.99 |
| Subscription | ✅ Yes | ✅ Yes |
The disposal bag handles Monday through Sunday. The liner handles the big reset.
Disposal bags: how do they handle wet clumping litter?
The question that comes up most in Judge.me reviews of cat litter bags is whether plant-based film holds wet, heavy clumping litter without leaking. Specifically: does it tear when the load is a full day of clay or tofu litter?
Plant-based film feels softer than polyethylene when you squeeze an empty bag. That softness is a material property, not a load rating. GIVE A SH!T® XL litter disposal bags are corn starch, PBAT, and PLA at 18 micron, rated leakproof for both clumping clay and the heavier moisture load from wood pellet or tofu litters. They're the same certifiable material family as the brand's TÜV Austria-certified dog waste bags, sized up for a litter tray.
The bags are 17.7 × 11.8 inches. Scoop the clumps in, tie the top, bin it. No second container, and no litter trail across the floor from carrying an open tray to the bin.
Multi-pet households get a bonus: the same bag handles a full tray changeout and works for large-breed dog pickups. For standard walk use, the GIVE A SH!T® compostable dog waste bags are the better format: handled, dispenser-friendly, roll size.
The XL litter bags carry both OK Compost HOME and OK Compost INDUSTRIAL from TÜV Austria. That's the broadest compostability coverage available for this product format. Most households bin the sealed bag in general waste regardless, but both certifications mean the film passed two independent test thresholds. And ten percent of every GIVE A SH!T® order supports Soi Dog Foundation's rescue work.
Tray liners: can cat claws puncture the liner during use?
Yes, it's possible.
A cat who rakes the base of the tray during every visit, not just covering but digging hard into the corners, can punch through a liner over time. GIVE A SH!T® tray liners are 2 mil plant-based film, built to handle normal scratch-and-bury behaviour without tearing. Normal is the key word.
The liners are 36 × 19 inches, sized for standard rectangular litter boxes with overhang at the edges. The built-in drawstring makes the change fast: pull the corners up, cinch the drawstring, and the spent load comes out in one motion. The tray stays clean. (Ten seconds, genuinely. We know that sounds like product-page copy, but it really is ten seconds.)
For aggressive diggers, the fix is simple: stack two liners. The outer one catches anything that gets through the inner one. You're using more liners per change, but a double-liner swap still beats scrubbing soaked litter off the tray base.
The 36 × 19 inch size fits most standard rectangular litter boxes, with enough overhang to fold over the sides before the litter goes in. If you use a jumbo or extra-large litter box, the liner still works; it's sized for those formats too. The plant-based film is the same corn starch, PBAT, and PLA blend as the XL disposal bags.
Certification note: GIVE A SH!T® tray liners are certified by TÜV Austria for OK Compost HOME. An independent lab tested the film and confirmed it disintegrates at least 90% within certified home composting timelines. The XL disposal bags carry both OK Compost HOME and OK Compost INDUSTRIAL. When you're checking compostability claims on any bag, look for the TÜV Austria mark on the packaging. That means a third-party lab tested the film, not just the manufacturer's own assertion.
Cat litter disposal: home compost or general waste?
General waste.
Cat feces can carry Toxoplasma gondii, a parasite that standard home composting temperatures do not consistently neutralize. US EPA guidelines and UK Environment Agency advice both recommend against putting cat waste into food-scrap or garden compost, regardless of whether the bag or litter is certified compostable. The bag breaks down correctly in a compost environment.
The waste inside it doesn't belong there.
Options beyond general waste: a dedicated pet-waste compost system rated to reach higher temperatures than a standard backyard heap, or a local green-waste service that explicitly accepts pet waste. Check your local authority before assuming that option exists where you live.
You switched from plastic bags because you didn't want them sitting in landfill for centuries. That logic still holds: the compostable bag is the right call on that front. Where the sealed bag ends up depends on what local collection services exist near you.
Frequently asked questions
Compostable cat litter bags: do they leak with wet clumping litter?
Not when the bag is rated leakproof. GIVE A SH!T® XL litter disposal bags are rated leakproof for clumping clay and for the heavier moisture loads from wood pellet and tofu litters. The 18-micron corn starch, PBAT, and PLA film holds wet waste; the bag just feels softer than standard polyethylene when empty.
Tray liner vs. disposal bag: which should you start with?
If you change the full box weekly, start with the tray liner. The ten-second box change is the biggest time save in the litter routine. Add the disposal bag once you've got the liner habit and want to close the plastic loop on daily scooping too.
Cat claws and tray liners: will an aggressive digger tear through?
A typical scratch-and-bury cat won't tear the liner. A cat who spends real effort raking the tray base might, over time. The fix: stack two liners. The 2 mil film handles regular digging on its own.
Home composting and cat litter: is the used litter safe to compost?
The compostable bag is safe in a compost bin. The cat waste inside it is not. Toxoplasma gondii survives typical home composting temperatures. General waste or a dedicated pet-waste composting system are the right routes for used cat litter.
TÜV Austria OK Compost HOME: what does the certification confirm?
TÜV Austria independently tests the film and certifies it disintegrates at least 90% under home composting conditions within the standard timeframe. It's a lab result, not a self-declared claim. GIVE A SH!T® tray liners are certified OK Compost HOME. The XL litter disposal bags carry both OK Compost HOME and OK Compost INDUSTRIAL.
Wood pellet and tofu litters: do compostable bags handle the heavier moisture?
Yes. Both litter types absorb more moisture than clay clumping, so a full daily scoop is heavier and wetter. GIVE A SH!T® XL litter disposal bags are rated leakproof for that load; the 17.7 × 11.8 inch dimensions are sized for a full litter scoop, not a slim walk bag.
