Thanks! That sounds interesting, especially that “Bratwurst” seems to be standardised. Here we have dozens of different varieties, each perfectly valid as a Bratwurst, but often wildly different. Off the top of my head I can think of Thüringer Bratwurst, Nürnberger Bratwurst, Nordhessische Bratwurst, Rostocker Bratwurst, Westfälische Bratwurst or Pfälzer Bratwurst.