Milieu Fermentation, or simply “Milieu,” meaning the social environment or vibe, is a dynamic brewery and fermentation house in Aurora, Colorado. Founded by brewing industry veterans Andrew Bergeron and Rob Bessett, the duo transformed the former Ursula Brewery space into a vibrant taproom that blends thoughtful design with adventurous fermentation.

From its opening in 2024, Milieu has emphasized both atmosphere and experimentation. Every detail of the space, from its bright-white walls to the greenery and carefully crafted fixtures, was designed by the founders and their friends in just sixteen weeks. Their vision was to create a place where everyone feels welcome, whether it’s hospital staff unwinding after a long shift, students studying, or locals gathering for a lively evening out.

True to its name, Milieu celebrates the wide world of fermentation beyond beer. While precision-brewed lagers and oak-aged ales anchor the lineup, the taproom also features hop water, hard tea, hard kombucha, and non-alcoholic options. Among the standout creations is Be Dope, a hazy IPA brewed in memory of a dear friend, with proceeds from each pour donated to rotating charitable causes. This combination of innovation and purpose has quickly earned Milieu a loyal following.

In recognition of its impact, Milieu was named “Best New Brewery” in Denver in 2025 and has already drawn acclaim at major festivals for its barrel-aged offerings. The brewery has also become a hub for community activity, hosting yoga classes, comedy nights, live music, and collaborations with other Colorado breweries.

At its core, Milieu Fermentation is about more than what fills the glass. It is a celebration of connection and creativity, proving that the best beverages are made not just with quality ingredients, but with intention and a deep sense of community. In Aurora, Milieu has created a space where flavor, innovation, and fellowship converge, offering both locals and visitors an invitation to explore, imbibe, and belong.