Ordinary salt crystals are mildly abrasive.
When sprinkled onto a damp toilet bowl and scrubbed with a toilet brush, they can provide a little extra friction to help loosen light surface residue.
Salt is also cheap and readily available, which probably explains why this old-fashioned cleaning trick has survived for generations.
But there’s an important distinction:
Salt is a supplemental cleaner, not a replacement for toilet cleaner, disinfectant, or proper plumbing tools.
It won’t magically remove years of mineral buildup or dissolve a serious clog.
How to Try It
If you want to experiment with salt during routine toilet cleaning, there’s no need to use much.
- Flush the toilet and allow the water to settle.
- Sprinkle a modest amount of ordinary table salt around the inside of the bowl, especially over areas with light residue.
- Let it sit briefly.
- Scrub thoroughly with a toilet brush.
- Flush.
That’s it.
There’s no particular benefit to dumping large quantities into the toilet or leaving salt there overnight.