How do I store mustard??

Storage advice for mustard

Mustard is best stored in a cool, dark and dry place. This could be the refrigerator, but it could also be in a kitchen cupboard.

Taste change

If you store mustard in the refrigerator, the sharp taste will be preserved longer. You can also store a recently purchased jar in the refrigerator. This further slows down the ripening process. If you have a jar that is very "young" and therefore perhaps too sharp, it is best to keep the jar out of the refrigerator for a while.