Why is root beer fizzier than other drinks?

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Rambach, Steven

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Why is root beer fizzier than other drinks?
« on: 15/07/2008 10:01:38 »
Rambach, Steven  asked the Naked Scientists:

Hey. Upon serving various carbonated drinks recently, I was reminded that root beer tends to produce foam much faster and more than many other carbonated drinks when poured into a glass. Why is that?
 
-Steven R

What do you think?

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blakestyger

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Why is root beer fizzier than other drinks?
« Reply #1 on: 16/07/2008 22:37:22 »
I've never had root beer but there may be something about its make-up that gives it a surface tension value that favours the formation of foam - the other variables could be the amount of carbon dioxide they dissolve in it as well as the temperature it's served at.