Which of the following is NOT a major type of beer?

The correct choice identifies a type of beer that is not considered one of the major categories. While stout, lager, and ale are all recognized as major beer types, stout is actually a subtype within the ale category.

Ales and lagers are the two primary divisions of beer, differentiated by the yeast used in fermentation and the fermentation process. Ales ferment at warmer temperatures with top-fermenting yeast, while lagers ferment at cooler temperatures with bottom-fermenting yeast.

Porter, while also a specific style of beer, is categorized as a type of ale. This means that while it is a popular and well-known style, it falls under the broader ale category. Therefore, stout does not stand alone as a major type of beer; it is instead a specific type within the wider ale family.

Understanding this classification is crucial for identifying and discussing various beer styles, as it helps in making informed choices in brewing, tasting, and pairing with food.