If you're in the market for a new outdoor barbecue, then you might be torn between stainless steel and powder-coated products. In many cases, stainless steel is a better outdoor option. Read on to learn more about these barbies and why you should consider going with a stainless steel model. What Are Powder-Coated Barbecues? Powder-coated barbecues are usually made from steel. At the end of the manufacturing process, the steel barbie case is given a coat of a specialist powder paint.