Grano Duro and Grano Tenero. What’s the difference?

Grano Duro and Grano Tenero. We hear about these wheats all the time. Why do they cause so much confusion? We have been talking a lot about this distinction with our miller Filippo Drago and also with our friends at Mulino Marino in Piemonte. We finally have cleared up our confusion and it is really not that difficult….