As one of the most divisive foods of all time, Marmite has long ignited fierce debate. Now the love-it-or-hate-it paste has fuelled discussion once more, after foodies discovered what it actually contains.
For an episode of Channel 4's Food Unwrapped, presenter Kate Quilton visited a factory in Burton-on-Trent, Staffordshire to find out how Marmite and other yeast products are made.
The factory has been producing the sticky condiment since 1902, with generations of Marmite lovers enjoying it on everything from toast to traybakes ever since. Viewers who tuned into the episode were left amazed by the process, with one ingredient in particular taking them aback.
