How To Make Your Own Cola

Ever wondered how to brew your own coca-cola clone? We’re not talking about the secret recipe here — but a recipe from a place who made some open-source cola. Called “OpenCola” the recipe was part of a promotion to explain open source software.

Here’s an excerpt for making the syrup:

Syrup:
Water: good old tap water will do, if you trust your tap. I used spring water.
75% Phosphoric Acid: Due to its acidity, this product is corrosive to the eyes and skin. Handle with gloved hands, and use extreme caution. If comes in contact with the eyes or skin, immediately flush with plenty of water for at least 15 minutes. Get medical attention. Rinse any spills on clothing or other surfaces thoroughly. Store in a secure area. Do not store more than 50.0 ml.
Try finding phosphoric acid at a compounding pharmacy in your area. There are pharmacies that still mix their own individual compounds and still stock phosphoric acid.
Citric acid: Very easy to find. I found mine at a Shoppers Drug Mart (Rougier Pharma Inc, Quebec, Canada J7J 1P3). Says right on the label, “For the preparation of acidulous drinks and effervescing draughts, and preservation of jams and jellies.” According to the Coke history book, citric acid was used first in the formula, but they now use the phosphoric.
Sugar: Basic granulated white table sugar found everywhere. Buy from a bulk store to save some money.
Caffeine: It’s best not to store caffeine in any amount. Caffeine can kill people in relatively small doses. The median lethal dose for an adult human is around 10 grams, or approximately one third of an ounce.

The full recipe is on Wikimedia here (PDF).

Hard to believe that a drink made of sugar, acid, and caffeine is arguably the most popular beverage in the world.

  • Dan

    Great post. This site is also quite good for making Cola.

    http://www.wikihow.com/Make-OpenCola

    Ububtu (Linux operating system) also have their own Cola, a sort of change the earth Fairtrade Cola.

    http://www.ubuntu-trading.com/

  • slicky

    This recipe made my left ball drop off

  • amar

    I agree with slicky here.

  • stalos

    This product is corrosive to the eyes and skin.

    Enough Said….

    Who in their right mind would drink that lol

  • jankers wertjly

    this cola is the worst thing you could ever drink
    if you drink this you will probably have a shorter life.
    If you like this you are crazy and probably stupid.

  • jankers wertjly

    shame on you for posting you like it.

  • jankers wertjly

    its worse than smoking

  • Jessica Latten

    I bet the Coke you buy is worse. At least they are using regular sugar.

  • Cthulhu

    Stalos and Jankers make my brain hurt.
    >implying that coca cola and pepsi doesn’t have any acid or caffeine in their formula. Its says so on the back of the flippin bottle you numbskulls.

    This Opencola is equivalent to coca cola and pepsi when it comes to the fact about phosphorus acid and caffeine. I must imagine that Coke and Pepsi has a little twist to their formula, which is why they guard it so closely. And with this formula in hand, I must take it and do some experimenting on my own. GNU-POWER!

Last Modified: August 18, 2011