Another test session was in 2009, where they held a tour to 17 cities in the United States to taste test seven flavors in a DEWmocracy II campaign. This event was one of the many taste test sessions that Mountain Dew has hosted in a long time.This flavor was the third American-themed flavor to release, the first DEW-S-A (2017, 2021), the second Liberty Brew (2019, 2020, 2024), the third Summer Freeze (2023), and the fourth/fifth Star Spangled (2024) and Freedom Frenzy (2024).The leak also showed a release window of April 24th, 2023 through June 16th, 2023 (an 8-week period) with the flavor being available in 20-ounce bottles, 12-packs, and 16.9 ounce bottle multipacks. On December 2nd, 2022, on the Dew Drinker Discord, it was leaked that Summer Pop would receive a limited-time Summer 2023 release with a new name, Summer Freeze, alongside a Zero Sugar variant. On October 24th, 2022, PepsiCo filed a trademark name for Summer Freeze titled 'MTN DEW SUMMER FREEZE.' alongside another file for its Zero Sugar variant titled 'MTN DEW ZERO SUGAR SUMMER FREEZE.' It was theorized that it would be the new name for the Summer Pop flavor, although this was not confirmed at the time.

Summer Pop would not be seen again until December 2nd, 2022, when it was revealed that there were plans for a Summer 2023 release with a new name, Summer Freeze, alongside a Zero Sugar variant. After the outpost closed, no results were publicly shared and it was unclear which flavors, if any, would be receiving store releases from the Outpost. Participants of the Outpost had a chance to try out the flavors and to provide their opinions on flavors in order to help PepsiCo decide on future flavor releases. The Outpost held DEW-sponsored activities and the MTN DEW Outpost Flavor Adventure, offering six never-released flavors of Pickle, Huckleberry, S'mores, Summer Pop, Elderberry, and Apple Cinnamon. On May 19th, 2022, PepsiCo announced the opening of a Mountain Dew-themed Outpost opened to the public on June 4th, lasting until the 12th of the summer. Natural and Artificial Flavors.' History 2022 Outpost test release Its tagline was ' DEW with a Blast of Summer Americana. As its name implies, Summer Freeze was a Red (Cherry), White (Lemon), and Blue (Raspberry) Popsicle flavor of Mountain Dew and has a blue look.

List of all mtn dew flavors