Double action fragrant baking powder: 1.Ingredients: Edible alum, sodium bicarbonate, starch, edible calcium carbonate, vanillin, sodium cyclamate . 2.Functions: used for scone, baozi, steamed bun, fried dough twist, fried dough stick, ice cream and so on. 3.Usage: mixing the baking powder with dry flour evenly at first, then stirring them with warm water and fermenting for 10-20 minutes to produce. The softer of the flour, the better the food will be! 4.Dosage: 2%-3% of the quantity of the dry flower 5.Shelf life:two years