Do Mustard Contain White Wine?

Dijon mustard originated in 1856, when Jean Naigeon of Dijon replaced the usual ingredient of vinegar with verjuice, the acidic "green" juice of unripe grapes. Most mustards from Dijon today contain white wine rather than verjuice.

What is mustard made of?

Prepared mustard in a jar is a mixture of dried mustard seeds, water, and some other liquid—typically vinegar. Dry mustard or mustard flour is the dried seeds ground to a fine powder. It's in the spice section of the store and is the basis of other styles of prepared mustard (more on that below).

Is mustard actually white?

The mustard seed is a dullish gray, brown color. The striking, bold yellow color actually comes from the rootstock of a plant called turmeric. ... This powder is then mixed with mustard seed powder, vinegar, water, salt, and voila, you got yourself traditional yellow mustard!