The budget supermarket is set to raise chicken and meat gravy prices after it was revealed that they both contain xylene, a chemical found in crude oil.

The gravy manufacturer, Kania, have refused to comment but motoring experts say the gravy is ‘definitely unleaded’ but ‘may be harmful to humans.’

Xylene can cause irritation of the mouth, oesophagus and stomach lining but should result in a smooth a drive with minimal emissions.  

The price hike will make Kania gravy almost the most expensive in the UK, second only to Heston’s Beef Finishing Jus sold exclusively at Waitrose.

In an attempt to spin the bad publicity, Lidl are investing in Kania powered Christmas ‘Gravy Train’ that will travel between stores over the festive period.

Get monthly highlights in your inbox