Note: This formulation is caffeine-free. I haven't tried adding caffeine yet. It looks like a 20oz cola contains about 58mg of caffeine. That looks to be equivalent to about 1/4 of an over-the counter caffeine pill. I'm not sure how well it dissolves in water, though.
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- Water
- Sugar
- Vanilla extract
- Cinnamon extract
- Orange extract
- Lemon juice
- green and red food coloring (optional)
Other ingredients that might come in handy are:
- Glycerin - The local pharmacy should have this. A couple drops should help keep the ingredients mixed. The bottle says "for external use only". Go figure.
- Cream of tartar - Found it in the spice section of the grocery store. Mildly acidic. Can be used instead of lemon juice if you'd prefer a less citric taste.
- Phosphoric acid. This was the one ingredient I couldn't get in a grocery store or pharmacy. I had to order it online from The Science Company. $20 for 16oz, which will do about 800 bottles of cola. Note: Very corrosive.








































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So thank you!
Oh?
And Amazon.com has food grade phosphoric acid for sale. That's where i got mine.
Lastly, I tried Acid Phosphate -- a different product. And it's only very mildly acid. And you can't even taste it when added to lemonade -- the lemonade is more acidy.
I haven't gotten around to setting up my own CO2 tank but want to, and in the mean time have used plain seltzer along with stevia and various flavors and acids to make tasty sodas.
The powdered stevia works just fine, though a funnel helps get it into the bottle without making a mess, and you do have to cap and shake it, then let it settle out again before opening.
http://www.dublindrpepper.com/
High Fructose Corn Syrup is what has been making sodas taste like crap for years now. AND it adds to the obesity problem in this country.
I invite people to do their own research in case they think I'm a nut...
There is also something called OpenCola:
http://en.wikipedia.org/wiki/OpenCola
Cane sugar Coke is also available quite often at local Hispanic and other ethnic food stores. I can get it if I go out of my way to a local store in another part of town. I wish the damn stuff were available all year around. It's what Coke is meant to be.
It's also worth noting that many countries have banned the use of HFCS in their foods.
I also notice you're using a yeast based CO2 source. Remember to boil your sugar water (yeast food) and cool before pitching yeast. Yeast eat monosaccharide, white sugar is a disaccharide. Boiling the sugar breaks it down into something the yeast can use and will produce much more CO2 with less sugar, making it cheaper and faster.
Also, consider that while the yeast requires warm temperatures (about 80°) Suspending CO2 in water works best at temperatures just below freezing (30°) and requires constant agitation to inhibit freezing and ensure the maximum absorption of CO2.
Try using an old steel pressure cooker with a steam-off valve for the fermentation. You can boil your sugar solution directly in it, cool it, pitch the yeast and shut the lid. When the pressure reading is between 55-65 psi, connect the hose to your chilled bottle of soon-to-be soda and simply release the valve to inject gas. Agitate the bottle as gas fills it and you're done in about 30 seconds. Depending on the size of the pressure cooker used, you could do several bottles all at once since you have a shut-off valve. You can even speed it up by placing the pot on a heating pad set to a more ideal temperature.
For Citric Acid, try this link: http://www.nutsonline.com/seedsspices/citric-acid.html
$15 for a 5lb bag is a good deal. Most brew shops sell 4oz jars for $4-5 each, far too expensive for soda making.
As for adding caffeine, caffeine pills are bad. They will leave an bad taste in the bottle, like sucking on an aspirin. I find light green tea (1 packet per 0.5L) will impart enough caffeine, and the potency of the vanilla and acid almost completely removes any tea flavor. Coffee works too (and is quite good in cola), but green tea will have more caffeine per volume and a lesser impact on the taste.
Recipe: Lemon/Lime (7up, Sprite etc.)
1.75 L spring water
4 Cups white sugar
3 Tbsp Citric Acid
Mix, carbonate and drink.
The difference between most brands is simply the sugar to acid ratio. Sprite has more sugar, 7up has more acid, and for the exact 7up flavor, 2Tbsp of Lime syrup (Roses brand works well). Play with the ratios a bit to find what you like.
Check the USDA Nutrient Database if you aren't sure.
Also, green tea contains less caffeine than black tea.
Don't know where you got the info that green tea has more caffeine than coffee.
A simple glance at Wikipedia provides the following two links, to begin with. It is highly unlikely that either of these two companies are a "front".
en.wikipedia.org/wiki/Stepan_Company has some information, as does en.wikipedia.org/wiki/Mallinckrodt