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Thanks I just started a new batch with about 1/16 tsp (~0.3 grams) and about 3/4 cup to 1 cup of sugar.

Thanks. One quick question: Would it be better to use less yeast? I currently use 1/4 tsp of ActiveDry yeast. Would it be better to use may be 1/6 or 1/8 tsp? How would this affect taste? Carbonation?

Thanks for the help. BTW if I put in the fridge for a day and then open it to release the pressure if I leave it out will the yeast recarbonate it? I want to give it a test taste to see if its working and if it doesn't taste right plan to redo it with least yeast.

Its like a end of semester party and we are being graded on it. So submerge in pot of 140 F water for ten minutes and put back in fridge? I assume I don't open to let CO2 out?

Right now I can barley squeeze the bottle, but like at the top I can press down on and feel a lot of resistance but still make a little dent (422 at 3pm pdt) I'll check it tonight and if its hardden then right now I'll put it in the fridge. Once in the fridge will the yeast stop or just slow...

I decided to redo it. Here what I did: 1 2L bottle soda bottle 1 cup of sugar 1/4 tsp of ActiveDry yeast 3-4 bottles of cold water (filled to a inch of full) 1 tablespoon of root beer extract References: http://biology.clc.uc.edu/fankhauser/cheese/rootbeer_jn0.htm...

Okay so even if the directions on a recipe says let it ferment for 3-4 days that the time varies? Does less time sitting out to ferment alter the taste of the final product?

So should i bring it into the fridge as soon as I cannot squeeze the bottle? It was hard to squeeze (ie it felt very hard) only about 20 hours after starting. Or should I leave it out or at least 3 days?

I have one more quick question. About the water I should use. If I use tap water should I leave it sitting out over night or something like boiling it to remove chlorine (would chlorine have an affect on the yeast?)

Thank-you for your reply. So if I refrigerate it for a fay or two before class I shouldn't have a problem with it exploding during class? (I leave for school about 12:30 and the "party" will probably be close to 4-5pm) Also is this type of yeast good: Fleischmann's ActiveDry yeast original...

I need to make root beer for an assignment in my microbiology course. Following a few recipes around the internet I bought a bottle of root beer concentrate, a package of active dry yeast (should I consider another kind of yeast?), sugar and a 2L plastic soda bottle. What would be the...