Some of the other pizza dough recipes specify the exact temperature of the warm water. That stresses me out. I do not have time to measure water temperature. So I don't and it's FINE. Just use your best judgment. Regarding the flour, some pizza dough recipes espouse the lovely qualities of bread flour. I'm sure it makes for an awesome crust but bread flour is not something I usually have laying around the house. All-purpose flour, on the other hand, is a staple in most kitchens so that's what we're using for a delicious, chewy crust. No trepidation!