Open-source cola

[1][2] The texts of OpenCola and Cube-Cola recipes are published under the GNU General Public License (GPL).

As these are added later, after the flavour blending stage, sugar and caffeine levels per batch can be tailored to a market's particular taste.

Neroli is frequently omitted altogether, owing to its high cost and relatively small contribution to the overall flavour.

The precise quality and sourcing of ingredients makes an appreciable difference, particularly in the process of emulsifying the concentrate.

[4] Small quantities of alcohol may be used to facilitate this process; as an open recipe, this is under the control of the manufacturer who may avoid such ingredients if prohibition, halal, or similar rules would require it.