You may find that its easier to pour the mix in a pitcher or measuring cup for easier pouring.
Pour your mix into glass bottles. (I have used clean glass bottles from drinks we have bought, and even small mason jars.)
Make sure you leave about 1-inch headspace.
Seal the bottle tightly.
Burp bottle one time a day to release pressure.
Let it set on your counter about two more days (depending on the temperature of your kitchen when your burping and hear a pop or see that it's fizzy, you know it's ready. Remember to keep out of direct sunlight!
Transfer to the fridge.
This seems to last a while in the fridge. In my experience it slowly continues to ferment and gets less sweet the longer it sets.
NOTICE this does contain a small amount of alcohol. From my research, it is a very small amount. My kids do drink this in small amounts.
*Lemon juice is said to turn this from blue to purple, when I tried omitting the lemon, when I added the ginger bug it still turned purple. If you have success keeping this blue please note how you did it in the comments.