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In the simplest terms, an ale is a type of beer brewed using top-fermenting yeast at warmer temperatures. This produces a fruity, fuller, more complex flavour profile. Traditionally, different types of ales are a fuller-bodied option compared to a lager and encompass a variety of styles, including pale ales, brown ales and stouts.
Top-fermenting yeast, Saccharomyces cerevisiae, is used to brew ale. Otherwise known as Brewer’s Yeast, it rises to the surface during fermentation. It is also at its optimum while at warmer temperatures, typically between 15–24°C. It produces the recognisable fruity and complex flavours of ale.
Anything between 0.05% and 1.2% ABV is classed as low alcohol, and anything above that follows standard alcohol labelling rules. In practical terms, alcohol-free beer is considered safe for most people reducing their intake or avoiding alcohol altogether.
So, how are alcohol free beers made? Whether the drink will contain alcohol or not, the brewing process starts the same way and uses the same, or similar, ingredients, including hops, yeast and grains.
All types of ales are characterised by bold, complex flavours and especially pronounced aromas, thanks to the fruity ester flavouring produced during fermentation. These featured fruity esters add a rich, vibrant taste that creates a more layered drinking experience compared to lager. This complexity makes ales distinctive and appealing to those seeking a flavourful, aromatic beer.
A lager is a type of beer brewed using bottom-fermenting yeast at cooler temperatures, resulting in a cleaner, crisper and smoother taste compared to ale. Another difference between ale and lager is that a lager will typically have a lighter body and colour. They include popular styles such as pilsners, dunkels and bocks.
Bottom-fermenting yeast, Saccharomyces pastorianus, is used to brew lager. This yeast is actually a hybrid of ale yeast and a more cold-tolerant yeast, Saccharomyces eubanyanus. It ferments at cooler temperatures, around 7–13°C and settles at the bottom of the fermenter. Lagers undergo a longer conditioning period, called “lagering,” which helps develop a clean, crisp flavour with smooth, subtle characteristics.
A lager is known for its clean, crisp and smooth taste. They feature a subtle hop character and minimal or potentially no fruity esters, resulting in a balanced, refreshing beer. This mild flavour profile makes lager have more global popularity and versatility, appealing to a wide range of palates.
When choosing between an ale and a lager, consider your personal flavour preference first: ales tend to be bold, complex and fruity, while lagers are clean, crisp and smooth. For food pairing, ales match well with rich, spicy or full-hearty dishes, while lagers, on the other hand, complement lighter meals like seafood, salads and grilled food.
The weather or season can also influence your choice; a lager is refreshing and ideal for warm days, while an ale can often be more enjoyable in cooler months due to its fuller body.
Finally, think about the occasion when considering ale vs lager. Lager is the easy-drinking, crisp option and a crowd-pleaser for social events, while ales suit slower, more flavour-focused experiences for those who are already a fan of the heavier beverage.
Ale is not always stronger than lager, but on average, it often has a higher alcohol content because of the yeast and fermentation process. The difference between ale and lager is that an ale uses top-fermenting yeast that works efficiently at warmer temperatures, producing more alcohol and bolder flavours. Lager, by contrast, uses bottom-fermenting yeast and ferments slowly at cooler temperatures, typically resulting in a cleaner, lighter profile with moderate strength.
Many traditional ale styles, like IPAs, stouts and Belgian ales, display higher ABV levels, while a lager will commonly fall into lighter ranges.
IPAs are ales. The term “IPA” stands for India Pale Ale, and it is brewed with top-fermenting yeast at warmer temperatures, which produces fruity esters and a more complex flavour profile. IPAs are defined by their assertive hop character, ranging from citrusy and piney to tropical and resinous, depending on the hops used.
Lagers take longer to produce because they use bottom-fermenting yeast that works slowly in cold temperatures. Fermentation occurs at around 7–13°C, which significantly reduces yeast activity compared to ale fermentation. After primary fermentation, lager will then undergo a lengthy conditioning phase known as “lagering,” where the beer is stored cold to mature, clarify and develop its crisp character. This extended process can take several weeks or even months. Ales, by contrast, ferment quickly at warmer temperatures and will be ready to drink sooner. The slower, more controlled production of lagers is essential to achieving their recognisable, subtle flavour.
Lagers are often perceived as lighter than ales, but this is a generalisation rather than a steadfast rule. Many different types of lagers are pale, crisp and lower in alcohol content, which contributes to their lighter image. However, a lager can also be dark, strong and full-bodied, such as bocks or dunkels. Ale, on the other hand, encompasses a wide range of styles, some light and refreshing, others rich and heavy. The difference between ale and lager lies more in fermentation than colour or body: lagers are clean and subtle, while ales tend to be bolder and fruitier.
