The strong ale category includes ales of essentially any style with higher alcohol levels (generally at least 7%) than what is common for that style. The amount of alcohol can be quite high in a strong ale (over 20% in some cases). The category is essentially a catch-all category and incorporates multiple base styles into the group, except for those styles that explicitly have their own strong (often "imperial" or "double") category. The target of strong ales should not be overpowering and harsh flavors, but instead an enhanced overall quality from the additional alcohol.
