Baking your store-bought baking soda in the oven for one hour will transform it into an alkaline salt - making it a great substitution for lye water to make alkaline noodles. In order words - use baked baking soda to make noodles that are firmer, springier, and less likely to fall apart in your soups and sauces.
Spread one cup of baking soda onto a baking tray lined with aluminum foil or baking/parchment paper.
Bake the baking soda for 1 hour.
Remove the baking soda from the oven and when cooled, store in an airtight container and store indefinitely.Be careful and do not use your bare hands when handling the baked baking soda or it may irritate your skin