What differentiates Trappist beers from Abbey beers?

The correct answer highlights that Trappist beers can only be produced by specific recognized monasteries that adhere to the Trappist Association's regulations. This designation is exclusive to breweries located within Trappist monasteries that are certified and recognized for their production, indicating a direct connection to the monastic lifestyle.

This differentiates them from Abbey beers, which are not limited to this specific set of guidelines. Abbey beers may be produced by any brewery, even those that are not associated with a monastery; they often emulate the style or lineage of traditional Trappist brews but do not carry the same certification. Thus, the distinctiveness of Trappist beers comes from their authentic ties to recognized Trappist brewing traditions and practices, ensuring that they are genuine representations of that heritage.