Lost on the interweb looking for that perfect kegerator for your home? With so many similar looking models to choose from, shopping for one can seem quite overwhelming. There are many options to consider when looking for a kegerator. For example, is it going to be built-in or freestanding? Is it going to be installed indoors or outdoors? How many kegs did you want to dispense at a time?
Once you’ve determined your application, you can quickly narrow down your options and begin to consider the more technical aspects of dispensing beer. Two technical factors that affect how well beer pours are temperature and pressure. When the temperature and pressure are set at optimal levels, a perfect pour can be achieved.
While it may seem logical that a foamy pour would be caused by too much pressure, it is actually temperature that contributes most to the level of foam in the beer. Foam naturally occurs when the temperature of the beer is 38 degrees or warmer. When beer reaches that temperature it releases CO2, which becomes foam in the beer.
A higher temperature can also cause beer to become cloudy and sour. However, it isn’t just warm temperatures that cause beer to foam. Foam can also form when the beer is too cold. If the temperature reaches 29 degrees, beer can start to freeze, and the small amount of liquid that remains unfrozen will turn to foam as it travels through the lines and out the tap.