Non-toxic. Bulking agent 523 refers to food processing added to the production of baked goods in the main raw material wheat flour, and in the process of heat decomposition, gas generation, so that the embryo hair, the formation of dense porous organization, so that the products have a puffy, soft or crispy class of substances. Also called expansion agent or loosening agent, hair powder, non-toxic and harmless. And in the process of heat decomposition, gas production, so that the embryo hair, the formation of dense porous tissue, so that the products have a puffy, soft or crispy salty class of substances. Cooking industry in the use of bulking agent has biological bulking agent and chemical bulking agent two categories.