Who cares about Dijon? It's about the mustard. In the supermarkets around here (Germany) it's hard to get Dijon mustard. In 100% of the time it's the Maille brand that can be seen in the header image of the BBC article. However it contains preservatives and I don't see why mustard needs to contain preservatives. By chance I discovered that Löwensenf is the same as Dijon mustard without preservatives, available everywhere and cheap.
And as incredible as it may sound, the "moutarde de Bourgogne" IGP, which wants to be a "quality" label, does not seem to forbid those crap (and as a result looking at random samples, they all have preservatives)
My quick review from mustard here in France is that if you want to avoid those preservatives you should choose an organic (Bio) mustard, which seems to be the only ones without useless ingredients (despite the fact that it probably has nothing to do with being Bio)
