I have a recipe book with recipes for both bark and root. For bark, the book calls for 1/4 oz per gallon. For root, it calls for 20 inches of root, about the diameter of a pencil" per gallon. Mark
To add to my last post, a bottle bomb would be dangerous. Perhaps a plastic bottle bomb would be less dangerous, and that's the reason why people like plastic bottles for soda.
I always use glass for soda, though, and just monitor it carefully and put it in the fridge when it's carbonated...
I've brewed beer a long time with Star San. Look at the directions for the concentration. It comes out to about 1 1/2 tablespoons per gallon. 3 ounces is way more than necessary.
There is no need to rinse. It is a phosphoric acid sanitizer - essentially killing all micro-organisms through...