Does a convection steamer typically have a pressure relief valve?

A convection steamer may come equipped with a pressure relief valve, but not all models necessarily include this feature. The presence of a pressure relief valve can depend on the specific design and manufacturer of the convection steamer. Some models are designed to allow steam to circulate freely without building excessive pressure, making a pressure relief valve unnecessary. Others, particularly those capable of higher steam pressures, may incorporate a pressure relief valve to ensure safety by allowing excess steam to escape and maintaining safe operating levels. This variability in design explains why it is correct to say that some convection steamers do have pressure relief valves, while others do not, rather than stating that all or none do.