This Sensible Map Exhibits the Polish Ketchup Belt. Wait, What?

It seems that in ketchup-loving, tomato-growing Poland, all of the manufacturers get their produce from factories in only one slender strip of land. This truth despatched the Web right into a tizzy.
Artykuł This Sensible Map Exhibits the Polish Ketchup Belt. Wait, What? pochodzi z serwisu 3 Seas Europe.