Of course you can. First, go to the supermarket and buy baking soda. Although the name is soda, but the use of baking soda rather than soda, so when you buy, pay attention to recognize the product composition is sodium bicarbonate, rather than sodium carbonate, the latter is called "soda". Take 2 to 3 grams (a small spoon) of baking soda in an empty bottle of mineral water, and then filled with cool water or purified water