It is found in baking soda
Baking soda and eating soda are not the same. Baking soda is an ingredient that is found in baking recipes.
I checked with a baking soda vendor and they explained that all baking soda is naturally gluten free. It is baking powder (which uses baking soda) that may contain gluten. You need to check with the manufacturer.
Sodium bicarbonate What you can get from the page below is that it is a compound sometimes found naturally and mined, as well as some make it in a factory by mining ore trona, dissolving it in water and treating it with CO2 makes it baking soda.
Sodium
Baking soda is a chemical compound. It is not grown, it is made.
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The element Sodium is found as ions in a compound in: * baking soda (Sodium bicarbonate), * baking powder (Sodium bicarbonate and Tartaric acid), and * salt (Sodium chloride).
PCH: Baking soda
All baking soda is gluten free, gluten is only found in flour.
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Sodium Bicarbonate