Which soft drink stays fizzy the longest?

Answer 1

I don't know of any scientific studies in this area but I can give you some observations which might help you to answer this question. First, sodas will behave differently when cold versus warm. Sodas lose their carbonation at a much slower rate when cold, especially when kept cold. Second, sodas lose carbonation at a faster rate when left uncovered. If you drink a tiny bit of soda out of a plastic bottle, and reseal it, there is not a lot of space for carbonation (CO2) to escape to. If you drink three-quarters of the bottle, and seal the bottle, there is a lot of space for carbonation to escape to and the one-quarter of soda remaining in the bottle will become flat quickly. Third, it appears that both sugar and caffeine slow the rate at which carbonation is lost. So products like Coca Cola and Pepsi retain their carbonation better than products like Sprite, and especially Sprite Zero (Diet Soda). Fresca seems to be an exception to this rule as its carbonation remains robust longer than most sodas despite not having either caffeine or sugar. Fourth, nothing will remove carbonation from soda faster than the contact of warm soda with ice. One can take a warm can of Sprite Zero, pour it over a cup of ice, and the entire contents will immediately be flat. SOOO, to keep soda fresh (carbonated) longer, always store it cold so that you are not opening warm teams or bottles of soda. Always pour cold soda it into glasses or cups of ice while cold. Always pour the soda down the side of the glass rather than pouring it on top of the ice. Once you have used half of a bottle, go ahead and use up the other half because it will go flat quickly.

Answer 2

A&W Rootbeer

Answer 3

The coldest ones

Answer 4

Diet Coke, good question

Answer 5

Coke by far, however I don't know why :/

Answer 6

coke