Find the story within the bubbles

The carbonation bubbles in your beer naturally want to rise to the surface of your glass, and in a spotless glass, they would do just that. If they’re getting stuck along the sides, it indicates that something is hindering their ascent to the frothy head of your beer. This obstruction could be something innocuous, like residue from dish soap or a cleaning agent used by the restaurant, or even a sanitizer applied after washing. On the other hand, it might also be grime, food particles, or other unwanted substances that have accumulated either in the restaurant or during the dishwashing process. Regardless, some non-beer obstacle is stopping those bubbles from providing you with the best (and cleanest) drinking experience.
While there’s some discussion about the ideal way to store glassware, it’s clear that you want the cleanest glass possible when dining out. Your glass might just need a quick rinse at the bar before being filled, or it may require a thorough wash again. Either way, you can now read the story told by the bubbles in your beer to assess whether the restaurant meets your cleanliness standards.
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