Not only vinegar and baking soda, but with lemon the taps are like new

In addition to the faucets, you can use this sponge to clean all stainless steel surfaces that have dark spots, including the hob!

NB . We advise you to have a delicate approach and not to insist too much with the sponge. The idea, in fact, is to use it as is normally done with abrasive sponges that have the roughest part.
Lemon and vinegar

Finally, let’s see how to combine lemon with another ingredient that can clean, stain and polish: vinegar. In this case, just mix the lemon juice with a little white vinegar and pour the mixture thus obtained in a spray bottle.

At this point, spray it on the faucets and let act for a few moments, then go with a soft cloth to rinse. Finally it dries thoroughly and you will notice that your faucet will return shining as if it had just been purchased!
How to avoid stains and marks on the faucets