Is it an added ingredient or a by-product of the other ingredients? Why is it added? taste? stability? why is it not in sprit or rootbeer?
In: Chemistry
Some root beer does have caffeine, like Barq’s.
It would be difficult to add caffeine to a lemon-lime soda because caffeine is bitter, though it’s possible that there is some rare example out there. Some orange soda has caffeine, like Sunkist. Also, Mountain Dew is a citrus soda with a ton of caffeine, but tastes notably different from lighter citrus sodas because of that.
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