Hell's Kitchen (2005) : 4x9

A relay race puts both teams to the test, with a sunny reward on the line. To up the stakes, the losing team faces a top-to-bottom complete restaurant cleaning. At the evening's dinner service, the teams are required to serve items from menus that they each created. One chef is called out for serving a disgusting extra ingredient in the food -- their own sweat. Chef Ramsay makes an unprecedented move at the evening's elimination.