This document discusses various baking ingredients and their properties, focusing on wheat flour. It defines flour as a finely ground powder made from grains. Wheat flour is the most common type and is milled from wheat kernels. There are three main types of wheat flour available in the Philippines - all-purpose flour, bread flour, and pastry flour. The document outlines the properties of flour, including moisture content, protein content, enzymes, lipids, and starch. It also discusses the classification, types, and market forms of wheat used to produce various flours.