By Jamie Lewis Published 29 November 2011, 11:42 AM GMT Share on Facebook Share on Twitter Share on LinkedIn Share on Reddit Share on Flipboard Share on Pocket The Marmite covered M1 is undergoing a huge clean-up operation after a tanker carrying over 20 tonnes of the yeast extract overturned last night. Marmite United Kingdom Twitter© Copyright IBTimes 2024. All rights reserved.