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While most famous sodas, including Pepsi and Coca-Cola, carefully guard their recipe secrets, some have released their formulae. The most well-known of these is Open Cola, which was introduced in 2001 as a promotional tool for open-source software. Like open source software, Open Cola invites amateur soda makers to modify their recipe. As a result, there are many variations of Open Cola recipes available. You may be surprised at the number of ingredients involved, but this is certainly no more than typical commercial sodas. You may have to visit a specialty store to find them all. The mix of flavors is what gives the soda its specific taste. Continue reading to learn one of the recipes for making Open Cola.
Step 1:

Ingredients and supplies:

  • 3.5 ml orange oil
  • 1 ml lemon oil
  • 1 ml nutmeg oil
  • 1.25 ml cinnamon oil
  • .25 ml coriander oil
  • .25 ml neroli oil
  • 2.75 ml lime oil
  • .25 ml lavender oil
  • 10 grams gum Arabic, food grade
  • 17.5 ml 75 percent phosphoric acid
  • 30 ml caramel color
  • 2.36 kg granulated white sugar
  • Soda water
  • Small bowl
  • Blender or mixer
  • Canning jar to store flavoring mix
Step 2:

Mix the flavoring. Begin by mixing the orange, lemon, nutmeg, cinnamon, coriander, neroli, lime, and lavender oils. This mixture is what flavors the soda.

Step 3:

Add the other ingredients. Now add the gum Arabic and 3 ml water to the mixture. This will form the texture of the soda. Then, mix all of the ingredients well using a blender or mixer. Once you are done, store this flavoring mix in a canning jar in the refrigerator, and use as needed.

Step 4:

Make the concentrate. Mix 5ml of the flavoring with 17.5ml of the phosphoric acid. Then add the caramel color, sugar and 2.28 liters of water. Mix this concentrate well. Do not drink it as mixed; it will be much too strong.

Step 5:

Dilute the concentrate. Next, mix the concentrate with soda water. Mix one part of concentrate into five parts soda water. As long as you use this ratio, you can make as much or as little soda as you need. This will make it similar in concentration to commercially available sodas. You can change the amount of soda water slightly if you like a stronger or weaker soda.

Step 6:

Enjoy! Refrigerate before serving. Open Cola has a delicious and unique taste.

Making soda at home is a fun and rewarding alternative to store-bought versions. Of course, you can change the amounts of the ingredients, or add or change the types of oils used, to suit your tastes. Open Cola is a unique alternative to commercial brands, and it can be a lot of fun to experiment with the flavor of your homemade soda.

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