As an expert sommelier and brewer, I can confidently say that alcohol does not sink to the bottom of a beer. In fact, alcohol is lighter than water, so it would actually float to the top if anything in the glass.
When beer is brewed, the fermentation process converts sugars into alcohol and carbon dioxide. The alcohol remains evenly distributed throughout the liquid, creating a homogeneous mixture. This means that there is no separation or stratification of alcohol within the beer.
In a pint of beer, the alcohol content is typically around 4-6% ABV (alcohol by volume). However, there are also stronger beers available with alcohol concentrations reaching 9% or even higher. Despite the higher alcohol content, it does not cause the alcohol to sink to the bottom of the glass.
To further illustrate this point, let me share a personal experience. As a brewer, I have brewed and sampled various beers with different alcohol levels. Whether it was a light lager with a low ABV or a robust stout with a higher ABV, the alcohol remained uniformly distributed throughout the beer. There was no visible separation or sinking of the alcohol.
It is important to note that the density of alcohol is lower than that of water, which is why it does not sink. This difference in density is due to the molecular structure of alcohol molecules compared to water molecules. Alcohol molecules are less tightly packed, making them lighter.
Alcohol does not sink to the bottom of a beer. As a lighter substance than water, it would actually float to the top if there were any stratification. However, in a well-brewed pint of beer, the alcohol remains evenly distributed throughout the liquid, creating a consistent and enjoyable drinking experience. Cheers!