How to make a clean soda bottle, pour cold boiled water into the bottle, not too full, add some sugar and a certain amount of juice. Then put1.5g baking soda, and finally put1.5g citric acid (or tartaric acid), immediately plug the bottle mouth, and tie the plug tightly with a string or aluminum wire to prevent the soda from rushing out. Shake the bottle gently, and a lot of bubbles will be produced in the bottle, which will roll up and down continuously, and it can be drunk after about 20 minutes. If you sweat a lot, you can make salt soda instead of juice soda. The method is the same, just change sugar and juice into proper amount of salt. Just in case, it is best to wrap the soda bottle in cloth when making soda.
Production method Baking soda reacts with citric acid (or tartaric acid) to generate a large amount of carbon dioxide, which is dissolved in water under pressure. Reduce the pressure, carbon dioxide will run out of the water in large quantities. When drinking soda, the stomach will not absorb carbon dioxide, and carbon dioxide will run out of the mouth and take away a lot of heat, making people feel cool.