Ok i have a 2 liter bottle fill half way up with water, i put 3/4 of a cup with sugar, teaspoon of protein and yeast it last 12 days. what can i do to make it last longer. What did i do right? What did i do wrong? and what should i do from now should i use the same water in the bottle?
For a 2 liter bottle, fill 2/3 full of warm water. Add two cups sugar and 1/2 teaspoon baking soda and 1/2 teaspoon active yeast. That will generate CO2 for about three weeks. Two weeks very well, the third week less so, and a fourth week weakly.
I think 12 days is good.
I change mine every 10 days to keep the flow constant and strong.
Anyway, that stuff smells so bad after 10 days I cannot imagine what it smells like after a month. I use so many bottles it would be cheaper just to buy a system.