How to clean porcelain sinks?

Start with a gentle sponge and dish soap. ...

Wipe the sink down with baking soda. ...

Use vinegar to remove watermarks. ...

must use a non abrasive cleaner. I use white vinegar and dawn.

Use lemon juice and table salt to get rid of rust stains.

I use baking soda and either a Scrub Daddy or Magic Eraser.

baking soda & peroxide

Bon Ami cleanser will not scratch porcelain.

Hi, Janene,

Just an afterthought, but there have been cautionary statements against using cleaning products with the ingredient "D-Limonene" on porcelain sinks, because the ingredient can wear through the porcelain finish, over time.

If you manage to erase the marks in your sink, consider coating the porcelain with a very good auto wax, several times a month, to preserve the finish.