Quick Answer

To remove stains from cloth diaper pail liners, pre-treat with a paste of baking soda and water, then wash on a warm cycle with oxygen bleach. Avoid chlorine bleach and high heat drying to protect the waterproof PUL fabric. For tough stains, sun-drying works as a natural bleaching step.

Why Stains Happen on Pail Liners

Cloth diaper pail liners collect moisture, waste residue, and odors over time, which can lead to yellow or brown stains. The waterproof PUL (100% polyester) fabric is non-porous, so stains typically sit on the surface rather than soaking in. This makes them easier to remove than fabric soft goods, but you still need the right approach to avoid damaging the liner's waterproof layer.

What You'll Need

Gather oxygen bleach (like OxiClean or a generic sodium percarbonate powder), baking soda, a soft brush or old toothbrush, and access to a washing machine. Avoid fabric softener, dryer sheets, and chlorine bleach—they can break down the PUL laminate over time.

Step-by-Step Stain Removal Process

  1. Pre-treat the Stain: Mix a thick paste of baking soda and water, then apply it directly to the stained areas. Let it sit for 15–20 minutes. This lifts surface stains without harsh chemicals. Don't scrub aggressively—PUL can delaminate if rubbed too hard with abrasive tools.
  2. Wash on Warm with Oxygen Bleach: Place the pail liner in the washing machine with a scoop of oxygen bleach powder. Use a warm water cycle (not hot) to activate the bleach without damaging the waterproof coating. Skip chlorine bleach entirely—it degrades the PUL fabric and shortens the liner's lifespan.
  3. Sun-Dry for Natural Bleaching: After washing, hang the liner in direct sunlight for a few hours. UV rays naturally lighten any remaining discoloration and help kill odor-causing bacteria. Avoid machine drying on high heat—it can melt or warp the PUL laminate. Air drying is safer and more effective for stain removal.

Pail Liners That Make Stain Removal Easier

  • ABC-Pail Liner: Our pail liners have elastic tops that provide a snug fit on most diaper pails or trash cans up to 40 quarts. Sewn-in closure snaps on both sides to keep odors in or for hanging purposes. Made with all waterproof materials-PUL (100% polyester) prevents leaking to help keep moisture out of your diaper pail. Pail liners can be used for multiple purposes! The smooth PUL surface resists deep staining, so a simple soak and wash routine keeps the liner looking fresh without aggressive scrubbing.
  • Dog Patches-Pail Liner: Our pail liners have elastic tops that provide a snug fit on most diaper pails or trash cans up to 40 quarts. Sewn-in closure snaps on both sides to keep odors in or for hanging purposes. Made with all waterproof materials-PUL (100% polyester) prevents leaking to help keep moisture out of your diaper pail. Pail liners can be used for multiple purposes! The snaps allow you to hang the liner for air drying after washing, which helps prevent mildew and keeps the fabric stain-free longer.