Mtn Dew is often described as 'citrus' flavor but that is a broad range of fruits with infinite possible combinations. It does have orange juice in the ingredients, but also "natural flavor". I would like to figure out a Mountain Dew 'substitute' using fruit juices...with no added sugar or caffeine.
OK, this is dangerously close to a recipe request, but far enough away that I feel OK to answer.
Use the rule of two.
- 2 cups of sugar
- 2 two oranges
- 2 limes
- 2 lemons
Juice and zest the whole fruit.
Strain and and fill to 1 gallon with water. Filter if you want it to be clear.
Carbonate using whatever technique you normally use whether that's a Cornelius keg or soda stream.
I definitely taste Grapefruit, but I suspect there is a bit of Mango as well as the Lime and Lemon. I think the Mango might be what adds a bit of the candy like flavor to it (asides from the sugar).
I drink Diet Dew daily am to pm. At times I sensed one of the complexity of 3-4 citrus flavors is a hint of grapefruit.
I always associated Mountain Dew with candy, like Skittles or Starburst (especially when we're dealing with the numerous variations like Code Red or Baja Blast). It tastes kinda candy-like to me. Not quite citrus, but very much a tart flavor. Not entirely sure how you could make a fruit juice alternative that tastes like it. Maybe combine various fruit juices together and see what kind of flavors you get?