Formula: (one bottle)
Baking soda1.5g.
citric acid
1.5g
A little sugar
Proper amount of juice
Method:
In a clean soda bottle, pour cold boiled water into the bottle, not too full, accounting for about 70% of the bottle volume, and add some sugar and a certain amount of fruit juice. Then add 1.5g baking soda, and finally add 1.5g citric acid, immediately plug the bottle mouth, and tie the plug tightly with string or aluminum wire to prevent the soda from rushing out. Shake the bottle gently, a lot of bubbles will be generated in the bottle, and it will roll up and down continuously, and it can be drunk in about 20 minutes.
Just in case, it is best to wrap the soda bottle with cloth when making soda.