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McDonald’s to Debut CosMc’s-Inspired Drinks at 500 U.S. Outlets This September

McDonald’s is tapping consumer feedback alongside franchisee insights to refine its drink menu ahead of a global rollout.

A person walks past a McDonald's restaurant on Broadway on June 11, 2025, in New York City.
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Overview

  • Beginning September 2, the test will feature Creamy Vanilla Cold Brew, Strawberry Watermelon Refresher, Sprite Lunar Splash and Popping Tropic Refresher at over 500 restaurants in Colorado, Wisconsin and nearby markets.
  • McDonald’s closed its five standalone CosMc’s locations in May and will not open any new spin-off outlets for the pilot.
  • The large-scale experiment leverages data from customers and local franchise operators to pinpoint best-selling recipes and streamline drink preparation.
  • The specialty beverages are designed to meet Gen Z’s rising demand for cold, flavorful refreshments and to rival chains like Starbucks and Dutch Bros.
  • Successful offerings from the test could be folded into McDonald’s core menu worldwide following analysis of customer and operational feedback.