Ale or Lager? How Brewing Shapes Beer
Dark Ale, Pale Ale, Pilsner, Stout: the world of beer styles can look daunting. Once you understand how beer is brewed, the whole landscape gets a lot simpler.
Four Core Ingredients
Every beer starts from four things: malted barley (or another grain), water, hops and yeast. Each one shapes the character and flavour of the glass you end up with.
The brewing journey runs through six steps. Malting soaks, germinates and kiln-dries the grain, which is then milled. Mashing mixes hot water with the malt to turn starch into fermentable sugar, making a sweet liquid called wort. Boiling adds the hops, which bring bitterness, aroma and flavour. Fermentation cools the wort and adds yeast, which turns sugar into alcohol and carbon dioxide. Maturation lets the flavours settle and the beer clarify. Packaging fills the can, bottle or keg, ready to enjoy.
| Step | What happens |
|---|---|
| Malting | Grain is soaked, germinated, dried and milled |
| Mashing | Hot water turns starch into fermentable sugar (wort) |
| Boiling | Hops are added for bitterness and aroma |
| Fermentation | Yeast turns sugar into alcohol and CO2 |
| Maturation | Flavours settle and the beer clarifies |
| Packaging | Beer is canned, bottled or kegged |
Ales Ferment Warm
Most of the difference between styles comes down to the yeast and the temperature it works at. Ale yeast thrives warm, between 15 and 25C, and rises to the surface during fermentation, which is why ales are called top-fermented. The warmth tends to build rich, bold, often fruity beers.
That single family covers a lot of ground. Dark ales such as porter and stout lean on roasted malt for chocolate, caramel and coffee notes. Pale and hoppy ales run from a smooth blonde to a bitter, aromatic IPA to a juicy, cloudy NEIPA. Wheat beers like the German weizen and the Belgian witbier turn cloudy and refreshing, the witbier spiced with coriander and orange peel. Hybrids such as kolsch and altbier ferment ale yeast cool for a cleaner finish, and Belgian ales like dubbel, tripel and quadrupel use distinctive yeast for complex, fruity, spicy depth.
Lagers Ferment Cold
Lager yeast prefers it cold, between 4 and 12C, and settles to the bottom of the tank, which is why lagers are called bottom-fermented. The cooler, slower ferment makes the clean, crisp, refreshing beers that lager is known for, with subtle malt and balanced hops.
A pilsner pairs a pale malt base with generous hops for a pronounced, refreshing bitterness. A helles, or pale lager, is brewed much the same way but hopped lighter, so the smooth, malt-driven side leads with a clean finish.
Same Craft Minus Alcohol
Whether a beer is a fruity, robust ale or a clean, crisp lager comes down to the same interplay of yeast, temperature and ingredients. With alcohol-free beer the craft is identical right up to the end. What sets it apart is dealcoholisation, the step that takes the alcohol out while the flavour stays in the glass.
In Short
- Every beer is built from four ingredients and six brewing steps, from malting to packaging.
- Ales ferment warm and top-down for bold, fruity flavour; lagers ferment cold and bottom-up for a clean, crisp finish.
- Alcohol-free beer follows the same craft, then adds one step: dealcoholisation.
Sources
Now you can read a label like a brewer. Browse the range and find your style.