Gruau flour is high-Gluten flour appropriate and recommended for use in all pastry recipes or applications. Croissants, puff pastry, brioches, pain au lait this flour has a higher gluten content (13% versus 8% for ordinary flour) resulting in higher and fluffier finished products. Higher protein can also result in a larger air bubbles and higher rise, which is why it is sometimes preferred for bread or mixed with other flours for bread.