About Stainless Steel
QS Products are made from 304-grade stainless steel, which has the highest resistance to corrosion, along with 316 and 316L.
The staining character and pit density difference between 304 and 316 are negligible and do not justify the 20 - 30 percent price difference.
When directly under purchase, satin stainless steel has a tendency to slightly discolour. This is caused by the oxidisation of the residue of the buffing wax left on the finished surface.
Once this has been cleaned by a non-abrasive cleaner, the finish will maintain itself with just the occasional clean.