Harry Harvey Soya flour, full fat and heat treated. Pale yellowish in colour, has a nutty flavour and aroma, made by grinding roasted yellow Soya beans into a fine powder. High in protein. Soya flour is a fine powder obtained from grinding roasted soybeans. When added to baked goods, soya flour can improve their nutritional value, mainly increasing their protein content, and enhancing texture via lipid oxidation.