La Moutarderie Edmond Fallot
This family-run mustard factory is the only one in France that still uses stone millstones to grind up the mustard seeds. Choose between two guided tours: the "Découvertes" includes a visit to a small museum featuring ancient mustard-making tools and machines, and a chance to make your own mustard, and it finishes with a tasting; and the "Sensations Fortes" tour includes a guided visit to the factory in action. The sleek boutique stocks a wide range of mustards, with several available to taste.