Rinse the piece of plastic with soap and water after pouring out the rubbing alcohol. If you don’t have rubbing alcohol, you can also use hand sanitizer the same way.
You can also use alka seltzer as a substitute for denture tablets, as it will work similarly.
Test the bleach out on a small section of the plastic before covering it entirely to make sure it doesn’t harm the plastic in any way.
If you’re trying to remove stains from a piece of plastic that can’t hold liquids, pour the white vinegar mixture into a container and then set the piece of plastic inside. The vinegar smell will disappear once the plastic is washed and left to dry.
You can purchase hydrogen peroxide at a drugstore or big box store. If you’re treating some sort of plastic mechanism, make sure you remove all the parts that aren’t plastic before putting it into the hydrogen peroxide. You can also use an old toothbrush to scrub the hydrogen peroxide onto the plastic, if desired.
If the stain didn’t come off, you can reapply the same liquid and follow the same process, or you can try out a different method to see if it works better.
Rinse the plastic with clean water once you’re finished.
Make sure you spread the lemon juice into the nooks and crannies of a stained piece of plastic, such as the yellowing marks on a cutting board.
A magic eraser can sometimes work on yellow stains, as do many cleaning powders.
