OpenCola is an open source cola recipe that is freely available and modifiable by anyone under a GNU license. The recipe has gone through several versions since 2001 based on feedback and suggestions. At its peak, 150,000 cans of OpenCola were sold by a now-defunct company that originally created it to promote their open source software. Today's recipe is based on version 1.1.3 of OpenCola and can be made at home following the instructions.

1. xj} OpenCola
r«d&.! we love open source!

2. What is OpenCola?
OpenCola is a brand of cola unique in that the instructions for making it
are freely available and modifiable.
Anybody can make the drink, and anyone can modify and improve on the
recipe as long as they, too, license their recipe under the GNU General Public License.
From Wikipedia, the free encyclopedia

3. Version History - OpenCola
1.0 - 01/27/2001
Original text 1.1.2 - 1/31/2001
1.1 - 01/29/2001 Fixed Amanda's email address
Fixed typos. Made disclaimer scarier. Removed 1.1.3 - 2/20/2001
snotty references to Americans.
Added sterner caffeine warnings, link to
1.1.1 - 01/30/2001 Material Safety Data Sheet – thanks to Tom
Swulius. Added contributors section.
Even more disclaimer, this time to differentiate
this recipe from the stuff in the cans.

4. “openCOLA” company (Toronto, Canada, 1999-2003)
Collaborative Object Lookup Architecture
openCOLA is an intelligent agent technology. You describe the characteristics of files
and documents that you're seeking, and it ventures forth on the Internet to find those
files and documents. You can improve its results by training it with feedback, telling it
what you like and dislike, and why....
http://web.archive.org/web/20000818032752/http://www.opencola.com/software/

5. OpenCola was a promotion tool
for openCOLA!
but, the company became better known
for the drink than the software....

6. 150,000 cans were sold!

7. Coke Tree?
18??
Original Coke
?
2001
Modern Coke OpenCola 1.1.3
2008 Cube-Cola 2.0 ? ?

8. Recipe Comparison
food-grade gum arabic
orange oil
lime oil
cassia oil
lemon oil OpenCola
nutmeg oil Cube-Cola
coriander oil Coke Original?
neroli oil
lavender oil
0ml 2.50ml 5.00ml 7.50ml 10.00ml
✴In Coke original recipe lime juice were used instead of lime oil
cf. http://www.thisamericanlife.org/radio-archives/episode/427/original-recipe/recipe

9. Today’s Recipe based on OpenCola 1.1.3
Flavoring formula Concentrate formula
10.0 g food-grade gum arabic 2.36 1.2 kg plain granulated white table sugar
3.50 mL orange oil 2.28 1.2 L water
3.00 mL water 30.0 mL caramel color
2.75 mL lime oil 17.5 mL 75% phosphoric acid or citric acid
1.25 mL cassia oil 10.0 mL flavoring formula
1.00 mL lemon oil 2.50 mL caffeine (optional)
1.00 mL nutmeg oil
0.25 mL coriander oil Dilution
0.25 mL neroli oil 25 15 mL concentrate + 125 mL soda
0.25 mL lavender oil

10. Time to cooking!
high-power corded or
hammer drill with kitchen
whisk attachment
http://sparror.cubecinema.com/cube/cola/

11. xj}r«d&.!