Soda water with rain alkaline substances, stomach acid when taking can neutralize stomach acid,\x0d\soda powder to make pasta when \x0d\sodium bicarbonate is baking soda, add water to dissolve is soda water. Some places call it noodle starter, which is also a food additive. Depending on the concentration can be prepared by yourself. (Be careful not to use boiling water). Sodium bicarbonate will become sodium carbonate when heated, then the chemical properties have changed, sodium carbonate is soda ash, that is, we say lye, also known as baking soda \x0d\\x0d\\ soda can be homemade in the earth's way:, 10 grams of commercially available "food soda" (do not use the industrial or \x0d\ laboratory soda, unknown composition) dissolved in 500 ml of water, and then dissolved in the water. The ingredients are not known) dissolved in 500ML (milliliters) of hot purified water, cooled and placed in the refrigerator to spare, baking soda should not be added more

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