Food storage containers

摘要

A lid for a food storage container includes a lid defining a vacuum sense opening and a vent opening extending through the lid body. The lid also includes a releasable cover disposed over the vent opening to impede air flow into the container through the vent opening until the cover is released. The lid further includes a pressure indicating dome defining a cavity therein, the dome in hydraulic communication with the container through the vacuum sense opening, the dome having a membrane that collapses toward the vacuum sense opening in response to negative container pressure.