Question: what is the difference between 00 flour and semolina flour?
Answer: semolina and durum are the same thing, just different grinds (semolina is more coarse, durum ground finer like most other flours). ... most people mix durum/semolina and 00 (or AP or bread) flour because of the types of wheat involved, the firmer gives more “bite” while the latter gives more “chew”.