What Will Make the Fizz Last Longer in a 2 Liter?
When you open a 2-liter bottle of soda and don't drink it all immediately, the remaining soda sometimes begins to taste flat. Soda is a carbonated beverage, and it loses its carbonation once it is exposed to air. Some tricks can keep your soda fizzy longer. Does this Spark an idea?
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Temperature
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Keeping soda cold is one of the best ways to retain fizz, according to U.S. Department of Energy's Ask A Scientist series archives. Soda is dissolved gas stored in a solution, therefore you must keep it cold. Higher temperatures mean less carbon dioxide molecules dissolve, which keeps the soda fizzy longer.
Pressure
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Replace the cap immediately after pouring the soda to minimize air exposure, which kills carbonation by lowering the pressure, according to Mike Redman, American Beverage Association. Carbon dioxide remains soluable when kept cold and at a high pressure. Avoid opening and closing the bottle too many times for this reason as well.
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Fizz-Keeping Products
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Some products available on shopping websites claim to keep soda fizzy longer. Soda dispensers, mini-versions of the kind you find at fast food establishments, allow you to cut off exposure to air immediately when you take your glass off the dispenser; you never have to open the cap or repeatedly tilt the bottle. Manufacturers of bottle stoppers, which you place on open soda bottles, claim that the product re-pressurize soda. How well these products work is up for question, according to Steve Spangler Science.com's information on maintaining soda fizz.
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References
Resources
- Photo Credit soda citron image by jergA from Fotolia.com
