a lid part for a container , the lid part is substantially made from a thermoplastic material and includes a connection portion for connection to a rim of a container part and a lid which is pivotably connected to the connection portion . the connection portion includes an access opening and a circumferential first flange surrounding the access opening , the lid including a circumferential lid flange extending towards the connection portion , perimeters of the lid flange and of first flange mutually adapted to allow the lid to close in a sealing manner on the first flange of the connection portion , and an area of the access opening is at least about 50 cm 2 .