Inner lid of a receptacle for instant-cooking foods

摘要

A lid which has a bottom portion and an upwardly extending sidewall surrounding the bottom portion and which is to be removably fitted within the inside walls of a receptacle. The sidewall portion is formed with a plurality of longitudinal grooves, whereby when the lid is fitted into the receptacle, a passageway is created which connects the interior of the receptacle beneath said bottom portion with the exterior of said receptacle above said bottom portion. The lid may be made of heat-resistant plastic.