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Compared to low-nickel steels like 201 or 430, 304 stainless steel offers superior rust resistance. Under normal use, 304 stainless steel sinks can remain rust-free and colorfast for years, a key reason for their widespread use in both home and commercial kitchens.

When the surface of 304 stainless steel is exposed to an oxygen environment, a very thin but dense chromium oxide film immediately forms. This film: Prevents oxygen from further oxidizing the internal iron. Therefore, 304 stainless steel sinks are inherently not prone to rusting in normal kitchen use environments.

The answer is: Yes, but the probability and extent depend on usage and cleaning habits. Bacteria thrive in humid environments, and kitchen sinks, despite their high-quality materials, provide essential conditions for growth due to frequent use and constant moisture.

—PVD-coated stainless steel sinks are non-toxic and pose no health risks to humans. PVD is a process that uses physical methods under high vacuum to transform a metal target into atoms or molecules, which are then deposited onto the surface of a stainless steel sink to form a dense thin film.

Yes, but not easily. While the PVD coating does improve the surface hardness and wear resistance of the stainless steel sink, it still cannot completely prevent scratches. In other words: • It is not easily scratched under normal use • However, improper handling and strong friction can still cause scratches.

If you pour vinegar directly into a stainless steel kitchen sink and don't rinse it for a long time, it may cause dark spots, dullness, or even micro-pitting corrosion on the surface.

Loose Drain Fitting This is the most common cause of leaks under stainless steel kitchen sinks. The sliding fitting (also known as a union) connects the sink outlet to the drain pipe. When the threads are not tightened or the rubber ring is misaligned, leaks will occur during drainage.