TLDR Review: Diet Pepsi SodaStream Mix

Published: February 12th, 2026

Pros

  • โ€ขTastes very close to the original Diet Pepsi, delivering a familiar cola flavor.
  • โ€ขMuch more economical than buying canned or bottled diet sodas.
  • โ€ขEasy to use and works well with soda makers at home.
  • โ€ขAllows customization of syrup and carbonation levels to find the perfect balance.
  • โ€ขContains zero calories and sugar, with a refreshing taste that suits diet soda fans.
  • โ€ขMixes easily and seals well with no leakage, making it convenient for regular use.
  • โ€ขConsistently produces refreshing drinks that satisfy cola cravings.
  • โ€ขProvides excellent value compared to storought diet sodas.
  • โ€ขContains caffeine and a small amount of sugar, offering a better alternative to sugary sodas.
  • โ€ขMaintains expected quality and flavor when used fresh.

Cons

  • โ€ขContains sucralose, which many find gives an overpowering artificial sweetener aftertaste.
  • โ€ขThe flavor can foam less and look darker than regular Pepsi, suggesting a cheaper formula.
  • โ€ขAttempts to mask the artificial sweetener taste with additives like sugar or lemon juice are ineffective.
  • โ€ขNot recommended for those sensitive to artificial sweeteners or who prefer traditional sugary cola taste.
  • โ€ขLeaves a noticeable aftertaste that differs from storought Diet Pepsi.
  • โ€ขThe product can develop an off taste if stored for long periods unopened, so freshness is key.
  • โ€ขMarketed as a special formula for home soda makers but compromises taste by cutting corners on ingredients.
  • โ€ขSome reviewers note it tastes more like Diet Pepsi despite not being labeled โ€œdiet,โ€ which can be misleading.

Bottom Line

If you're after a budget-friendly way to enjoy a Diet Pepsi-like soda at home with your SodaStream, this beverage mix delivers a close-to-original taste and great convenience, especially if you adjust syrup and carbonation to your liking. However, brace yourself for a noticeable artificial sweetener aftertaste due to sucralose, which wonโ€™t be for everyone. We recommend using it fresh and minding your sensitivity to sweeteners before committing. For those who dislike artificial aftertastes, exploring other SodaStream syrup options might be worthwhile, but if you want Diet Pepsi flavor and good value, this is a solid pick.

How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.

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