The more expensive Sparkling Juices use natural carbonation. The juice is let ferment a bit to create natural carbonation, then it is flash-pasteurized. This makes it somewhere in between wine and juice.
The cheaper ones are artificially carbonated with C02, with the juice flash-pasteurized immediately after pressing so that no fermentation will take place. European-made ones may advertise themselves as "low in alcohol" (around 3% alcohol) as opposed to the "100% alcohol" free more common in puritanical North America.
The more carbonated any beverage is, including juice, the less sweeter it seems.
JuiceAguamiel; Apple Juice; Bug Juice; Cranberry Juice; Frozen Orange Juice Concentrate; Fruit Drink; Grape Juice; Juice Apples; Juice; Lemon Juice; Lime Juice; Mock Orange Juice; Nectars; Olive Juice; Orange Juice; Pickle Juice; Pineapple Juice; Pomegranate Juice; Sparkling Juices; Tomato Juice; V8 Juice; Yuzu Juice
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