White vinegar is your MVP. It’s acidic enough to dissolve calcium, but gentle on plastic. Fill a spray bottle with equal parts vinegar and water. Spray the stain. Wait 15 minutes. Wipe it off. Done. The smell fades fast, I promise.
For nasty buildup, submerge the plastic item in pure vinegar overnight. Yes, it will smell like a pickle’s angry cousin. But in the morning, the stains will crumble off like defeated cookies. Rinse with warm water. No trace left.
No vinegar? Use lemon juice. Squeeze half a lemon on a cloth. Rub the stain in circles. The citric acid works slower than vinegar, but it smells like a sunny orchard. Bonus: your hands won’t stink.
The Baking Soda Power Move
For deep-set stains, mix baking soda with water into a paste. It’s like toothpaste for your plastic. Slather it on. Let it sit for 10 minutes. Scrub gently with a soft sponge. The grit does the work without scratching. Rinse. Marvel at the glow.
Effective Ways To Remove Hard Water Stains From Plastic Bottles | ShunPoly
Fun fact: baking soda and vinegar together create fizzy chaos. It’s a tiny volcano in your sink. Kids love it. Adults pretend to be annoyed but secretly love it too. Use this combo for extra stubborn spots. Just don’t use it on clear plastic—it can etch it a bit.
