Good double effect baking powder: 1. In the production of the advanced technology, superior reclaimer, processing fine, quality reliable,and well received by the user's favorite. 2.Ingredients: potassium alum , sodium bicarbonate, starch, edible calcium carbonate 3. Functions: used for scone, baozi, cake, steamed bun, fried dough twist, fried dough stick, ice creametc. 4.Usage: mixing this baking powder with dry flour evenly at first, then stirring them with appropriatewarm water to produce. The softer of the flour, the better the food will be! 5. Dosage: 2%-2.5% of the quantity of the dry flower 6. Shelf life: one year.