The History of Mustard
Mustard appeared in recipes as early as 42AD, but it wasn't until the 1720s that it appeared on English tables. Prior to this, English mustard powder was ground up very coarsely, as Meaux mustard still is today.
In 1720, that all changed when a woman named Mrs Clement, who lived in Durham, began grinding mustard seeds very smoothly. She then put her ground seeds through a mill and sieved them to remove the hulls. Her smoother style of mustard was a hit and is why this style of mustard is known as 'Durham Mustard'.
When King George I became a devotee, nobody would eat beef without mustard. This is reflected in historic KEEN'S Mustard advertising, which states that 'meat needs mustard' and 'mustard makes the meal'.
Mustard's hot and zesty reputation wasn't limited to food. It was also considered a cure for colds and fevers.