Baked Baking Soda (Sodium Carbonate) Recipe

1. 1

   Preheat oven to 350u00b0F.

2. 2

   Line a rimmed baking sheet with foil. Note the weight of the foil-lined baking sheet using a digital scale. Spread baking soda in an even layer and place baking sheet in oven.

3. 3

   Bake, stirring the baking soda every half hour, until the weight of the baking soda is reduced to 613g (~21 oz), which is 2/3 of the starting weight (weigh the baking sheet with the baking soda, then deduct the recorded weight of the lined baking sheet to determine the weight of the baking soda itself). The amount of time this can take can vary quite a bit, anywhere from 2 to 5 hours.

4. 4

   Remove from the oven and, when cool, store in an airtight container; be careful not to handle the baked baking soda with bare skin.

No additional tips available.