Gluten Free Aluminium Free Baking Soda 450g Baking Soda is plain bicarbonate of soda, a top quality leavening agent, used in combination with buttermilk, cocoa, and other acidic ingredients for baking. specialty : Gluten Free item weight : 450 item package quantity : 2 brand : Bob,s Red Mill is expiration dated product : True item form : Powder number of items : 2