When a beer is described as murky, it means that it appears cloudy or hazy in the glass. This can be due to a variety of reasons, including the presence of suspended particles, such as yeast or proteins, that have not settled out of the beer. Murkiness can also be caused by the use of unmalted grains or high levels of hop oils, which can contribute to a haze in the finished product.
In the past, murky beer was often seen as a sign of poor quality or a brewing defect. It was thought to indicate that the beer had not properly conditioned, with yeast and other sediments still present in the liquid. This could result in off-flavors and a less enjoyable drinking experience.
However, the perception of murky beer has changed in recent years, particularly with the rise of craft beer and the embrace of certain beer styles that intentionally have a hazy appearance. Beers like New England IPAs and certain Belgian witbiers are known for their cloudiness, and it has become more accepted as a characteristic of these styles.
It's important to note that not all murky beers are created equal. Some may indeed still contain a significant amount of yeast, while others may be visually cloudy but have very little yeast present. Many modern breweries also produce unfined beers, meaning they do not use fining agents to clarify the beer. This can result in a naturally hazy appearance, even if the beer is free from any off-flavors or sediment.
It's also worth mentioning that there are different levels of murkiness in beer. Some beers may have a slight haze, while others can be downright turbid, almost resembling a fruit smoothie. The reasons for this can vary, including the use of certain ingredients or brewing techniques that intentionally create a more pronounced haze.
In my personal experience as a brewer, I have encountered situations where a beer turned out murky despite following the usual brewing process. This can be frustrating, especially when you're aiming for a clear and visually appealing beer. However, I have also come to appreciate that not all beers need to be crystal clear to be enjoyable. Some styles, such as German Hefeweizens, are meant to be cloudy and are highly regarded for their flavor profiles.
The meaning of a murky beer has evolved over time. While it was once seen as a sign of poor quality, it is now more accepted and even embraced in certain beer styles. Murkiness can be caused by a variety of factors, including suspended particles, unmalted grains, or intentional brewing techniques. It's important to consider the specific style and intended characteristics of the beer before making judgments based solely on its appearance.