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Comment by ashtonkem

Since the article mentions it, the amount of carbonation in any given beverage actually varies by a lot. The traditional measurement of carbonation is in "volumes", which is the amount of space the CO2 would take up at standard temperature and pressure (32F and 1 atm). Coca Cola is usually packaged at 3 volumes; if you took all the CO2 out of the soda it would occupy 3x the volume of the soda it came from.

Alcoholic beverages on the other hand have a pretty wide range of regular carbonation levels. On your lower end you have stouts and Scottish ales at 1.9-2.1, and on the high end you get your dubbel and heffe weisen at 3-3.5 volumes. Champagne is regularly in the 4.5-6 range, which necessitates a different bottle and closure design to handle the 2-3x pressure it contains compared to beer.

On a particularly dumb note, ciders are limited by law to 0.64g per 100ml, or 3.2 volumes. Above that level they cease being ciders and instead become a sparkling wine. This is very important because natural cider is taxed at $0.226 per gallon, while sparkling wine is taxed at $3.30 or $3.40 per gallon depending on how the carbonation is added. This is a difference of roughly 30 cents per standard bottle, or $1.79 per six pack; enough of a difference to make similar products more attractive on the market place shelf.

https://www.ttb.gov/tax-audit/quick-reference-guide-to-wine-...

parent ashtonkem 5 years ago

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