4. The Diluted Bleach Paper Towel Treatment (For White Containers)

Warning: Use this method with extreme caution, only on all-white or clear plastic containers, and ensure proper ventilation. Never mix bleach with ammonia or vinegar. For severe, set-in stains on color-safe plastics, a controlled bleach application via paper towel can be effective.

1. Materials Needed:

You will need household chlorine bleach, water, paper towels, disposable gloves, and a well-ventilated area.

2. Step-by-Step Process:

Put on gloves and work in a ventilated space. Create a very mild solution of one part bleach to ten parts water in a bowl. Submerge a few sheets of paper towel in this solution and wring them out so they are damp, not dripping. Line the stained container with these damp paper towels, pressing them onto the stains. Place the entire container in a well-ventilated area away from children and pets, or outside. Let it sit for no more than 15-30 minutes—do not leave it for hours, as prolonged exposure can damage the plastic. Check frequently. After the time is up, remove the paper towels (dispose of them safely) and rinse the container incredibly thoroughly with soap and hot water multiple times to remove all bleach residue.

3. Why This Works:

Bleach is a powerful oxidizing agent that breaks down the chemical bonds of stains, effectively removing the color. The paper towel method localizes the bleach to the stained area with minimal liquid, reducing the risk of over-bleaching or damaging the plastic and making the rinse-off process more manageable.