What is GF 00-style flour?

A finely milled gluten-free flour formulated specifically to mimic wheat 00 flour for pizza and bread. The leading brands are Caputo Fioreglut (Italian, sold in red bags, widely considered the gold standard) and King Arthur Gluten-Free Bread Flour (US alternative). Both contain higher concentrations of protein-mimicking binders than a 1-to-1 baking blend, so the dough handles much closer to wheat — stretchable, foldable, and capable of holding shape during a stretch or shape. GF 00 is meaningfully more expensive than a standard 1-to-1 blend and isn't necessary for most home GF baking — reserve it for pizza doughs and rustic loaves where the structural difference matters. For sandwich bread, focaccia, and flatbreads, a standard GF blend plus psyllium husk gives nearly identical results.