Many of our products feature what we call a "Natural Steel Finish". This finish is simply the uncoated mill finish of the steel after it is formed at the mill. No protective coating or finish is applied to the steel to preserve it from weathering or beginning to form its natural iron oxide patina (rust). This weathering/patina process is a natural reaction that occurs when water (i.e. rain, moisture, humidity) and oxygen comes in contact with the iron in the untreated Natural Steel Finish. The patina process usually starts off orangish in color, but will become more brown in appearance as the steel is continually exposed to water and heat. Because the amount of exposure to these elements may vary on specific parts of the product(s), some areas may or may not weather/patina as fast as others. All Fire Pits and their accessory products are constructed out of the same high carbon grade steel and will eventually look similar with time and use. This weathering/patina process occurs at the surface level, so even though the surface may look rusty, the Fire Bowl will not rust through, warp or rot out over time.