"Diet Coke is fizzier than other sodas, which means it takes flight attendants longer to pour it. They have to pour slowly and keep letting the soda's foam calm down before pouring more."
"Diet Coke has potassium benzoate and aspartame, which are considered 'surfactants,' or chemicals that can actually lower a liquid's surface tension. This makes Diet Coke explosively bubbly."
"The airplane is dry, and there's a lot of pressure in the air. Both that dryness and the cabin pressure tend to dull our taste buds, making things taste less sweet."
Ordering drinks on a flight can be complicated due to various factors. Shaken cocktails are not recommended as flight attendants lack the necessary equipment. Diet Coke is particularly problematic because it is fizzier than other sodas, requiring flight attendants to pour it slowly to manage the foam. The effervescence of Diet Coke is attributed to its lack of sugar and the presence of surfactants like potassium benzoate and aspartame, which lower surface tension. Regular Coke is a better option as it tastes less sweet in the dry, pressurized cabin environment.
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