How Lager Beer Developed in Central Europe

Lager beer occupies a distinctive position in brewing history, shaped by its cool fermentation, long storage, and the innovations of Central European brewers. Unlike ancient ales—which dominated global brewing for thousands of years and relied on warm, rapid fermentation—lagers developed much later, emerging in the 14th–15th centuries in the regions that are now Germany and the Czech Republic. The word “lager” itself comes from the German lagern, meaning “to store,” a reference to the early practice of aging beer in cold caves and cellars to achieve stability and clarity.

Central Europe provided the ideal environment for this new style. Brewers in Bohemia, today’s Czech Republic, refined the techniques that produced early golden lagers, taking advantage of naturally cold winters and harvested ice to maintain the low temperatures required for fermentation. These conditions encouraged the use of bottom-fermenting yeast, which thrives at cooler temperatures and works slowly, creating the clean, crisp profile that distinguishes lagers from the fruitier, more aromatic ales.

Bavaria played a central role in formalizing and improving lager production. In 1516, Duke Wilhelm IV issued the Reinheitsgebot, or Purity Law, which restricted beer ingredients to water, malt, hops, and yeast. This law helped standardize brewing practices and reinforced quality control. In 1553, Duke Albert V mandated that brewing take place only between late September and late April, further ensuring that beer was produced in the cold conditions necessary for successful lagering.

Advances in malting also shaped lager evolution. Early lagers tended to be darker because malt was kilned over wood or coal, which imparted color and smoky flavors. The introduction of coke in the 18th century, followed by Daniel Wheeler’s 1818 invention of indirect-heat kilning, made it possible to produce pale, clean-tasting malt consistently. The growing use of glass drinking vessels heightened demand for these clearer, golden beers.

Before mechanical refrigeration, German brewers maintained cool temperatures by storing beer in deep cellars filled with winter ice. This changed dramatically in 1870 when Carl von Linde designed the first large-scale refrigerated lagering tanks for Gabriel Sedelmayr’s Spaten Brewery in Munich. Refrigeration enabled year-round lager brewing and supported the style’s rapid spread worldwide, carried in part by refrigerated rail transport that ensured stable beer even across long distances.
How Lager Beer Developed in Central Europe

History of Pilsner production

The origins of Pilsener beer can be traced back to the ancient city of Plzen located in the western half of the Czech Republic and before that part of the kingdom of Bohemia. The original Pilsner brew is Pilsner Urquell which grew out of the 1838 consumer dissatisfaction protest of the taste and quality of top-fermented beer.

Plzen’s contribution to beer history began in 1295, when the King of Bohemia, Wenceslas II, founded the town of New Plzen on the banks of the Radbuza River. The city of Plzeň was granted brewing rights in 1307, but until the mid-1840s, most Bohemian beers were top-fermented.

Josef Groll (1813–1887) was the Bavarian brewer hired by the Měšťanský pivovar Plzeň brewery (Citizens' Brewery), owned by the city of Pilsen, to produce the pale lager and refined taste that is now associated with the beer.

Using low-protein Moravian barley malt prepared by indirectly heated kilning, and none of the roasted or smoked barley that the German brewers were using, Groll added generous portions of the fragrant Saaz hops from nearby Žatec to his brew.

On October 5th, 1842, Josef Groll presented the first pilsner to the public. It was an instant classic. The color of straw, it was light and clear. One could see right through it to the other side of the Bohemian crystal glass.

The growth of railroads in Europe and the advent of refrigeration spread the popularity of Pilsners to northern Germany and across all of Europe where the style was modified to suit local brewing resources.

By 1853, the beer was available at 35 pubs in Prague. In 1856, it came to Vienna and in 1862 to Paris. Modern Pilsners are now fermented in cylindrical tanks although a small quantity (for taste comparison) are still fermented the traditional way of open barrels in cellars.
History of Pilsner production

City of Plzeň 

History of hopped beer

Beer is a popular alcoholic beverage worldwide, traditionally made from water, barley and hops. Compared with the other raw materials, hop is a minor, but indispensable, ingredient in beer production.

Before hopped beer there was “gruit” beer‐ an herb mixture to provide flavor and bitterness. Archbishop of Cologne, Germany held monopolistic rights to gruit.

It is assumed that ancient Caucasian people brewed hopped beer, and that this technology came with their migration to Northern and Eastern Europe.

The first recorded use of hops in brewing in Europe originates from the ninth century. In 822 AD, Abbot Adalhard of the Benedictine Monastery of Corbie issued a set of instructions for his abbey.

Brewers use hops primarily to get bitterness, flavor, and aroma. Hops can be added at several points in the brewing process to enhance one or the other of those things.

The use of hops in Western monasteries has been further documented in Fontanelle and St. Denis during the eighth and ninth centuries AD.

Evidence suggests that commercial hop cultivation began in northern Germany during the 12th or 13th century and that the Germans were exporting hopped beer from the 13th century onward.

In the 1300’s, the Dutch began importing hopped beer and then began brewing their own. Hops were planted in England by the early 1400’s and in 1436, Henry VI praised hopped beer as “notable, healthy, and temperate.”

The first evidence of hopped beer being brewed in England is from 1412 and for a time English brewers produced both un-hopped “ale” and hopped “beer.” Brewers started to import dried Flemish hops but these contained so much extraneous matter that an Act of Parliament was passed in 1603 imposing penalties on merchants and brewers found dealing in hops adulterated with ‘leaves, stalks, powder, sand, straw and with loggetts of wood dross’.

On April 23, 1516 the Bavarian Reinheitsgebot was put into effect declaring hops one of the three allowable beer ingredients.

By the 17th century ale (i.e.: un-hopped beer) was no longer popular and beer was the established drink and by 1655 hop cultivation grew rapidly in fourteen counties of England. In 1710 the English parliament banned the use of non-hop bittering agents, at least in part to prevent brewers from evading the new penny-per-pound hop tax.

In United States, in 1629, the hop cones were used for beer brewing. The young shoots in the spring were eaten as a special treat in salads. While, the first commercial hops harvested in Massachusetts in 1791. In the nineteenth and early twentieth centuries New York produced about eighty percent of the nation’s hops.
History of hopped beer

History of stout

Stout: A very dark, almost black ale. The dark colour and roasted flavour are derived from the roasted barley, and/or roasted malt.

The oldest proven records of brewing are about 6,000 years old and refer to the Sumerians. It is said that the Sumerians discovered the fermentation process by chance. A seal around 4,000 years old is a Sumerian "Hymn to Ninkasi", the goddess of brewing. This "hymn" is also a recipe for making beer.

It was suggested that porter (or at least the practice of calling a beer 'porter') came to Britain from the Netherlands, where a beer known as 'poorter' was being consumed as early as the 14th century.

Egerton Manuscripts which dated 1677 are known as the first to use the word stout. The word referred to strength. Owing to the similarity of the porters, they were brewed in a variety of strengths. In the 18th century, for example, the term stout porter was used to describe a porter, or dark beer, with alcohol content above 7 percent.

As long as a beer is strong the stout word was used to represent them. For example, the stout pale ale was found in the UK and stout was linked to the port only becoming related to dark beer. Stout still meant only "strong" and it could be related to any kind of beer, as long as it was strong.

Arthur Guinness, the founder of the brewery that makes the world’s most popular stout, began his operation near Dublin in 1755, the same year that Samuel Johnson published his famous dictionary. Johnson’s entry for stout reads: A cant name for strong beer.
History of stout

History of ale brewing

Ale is a type of beer brewed through top fermentation, a process in which yeast ferments at warmer temperatures and settles at the top of the beer.

Fermented malt liquors had been native to the British Isles since primeval times. In Roman times the shopping lists of the garrison document that beer was an important constituent of the legion’s diet.

Historically, the term ale referred to a drink brewed without hops. In 500 AD the Angles and Saxons started arriving in Britain to conquer and settle. Their social life revolved around beer halls and ale houses. In the eighth and ninth centuries different types of malt liquors were already in common use: clear ale, mild ale and Welsh ale, the latter probably being an originally Celtic drink made from ale and honey.

In England in the Middle Ages, ale was a drink made from malted grains, water, and fermented with yeast. Malted grain would be crushed; boiling water would be added and the mixture allowed to work; later the liquid was drained off, cooled and fermented. The ale might have been spiced, but it would not have had hops as an ingredient.

At the end of the fourteenth century their trading partners from the Low Countries confronted the Englishmen with hopped beer. Up to then, ale was the characteristic British drink of the time.

Popular in England, where the term is now synonymous with beer, ale was until the late 17th century an unhopped brew of yeast, water, and malt, beer being the same brew with hops added.

During the late 15th century English ale and beer were brewed separately because no brewer was allowed to produce both at the same time. By the 16th century, ale had come to refer to any strong beer and all ales and beers contained hops.

In 1522 the licensing of alehouses was made mandatory by law in England. The census of 1577 lists 14 202 alehouses, 1631 inns and 329 taverns (which sold wine in addition to ale) – one license per 183 people.

In early 1900s, the first English brown ales appeared. It is beer style with a dark amber or brown color. Brown ales were lightly hopped and brewed from 100% brown malt.
History of ale brewing

Saccharomyces cerevisiae

Saccharomyces cerevisiae has been widely used by humans for thousands of years and is arguably one of the most important microbial species in human history. Archaeologists have found evidence for the production of a fermented beverage in China at 7000 BC, and of wine in Iran and Egypt at 6000 BC and 3000 BC.

Archaeological evidence of brewing activity was found on Sumerian tablets dating to about 1800 BC although the origins may well go back to around 10 000 years ago. The text found on these tablets sings the praises of the Sumerian goddess of brewing in the ‘Hymn to Ninkasi’. Since that time, mankind has discovered that the goddess that caused the ‘magic’ is in fact the living organism, yeast. Ancient brewers domesticated yeast due to selection of the best fermentation agent.

Saccharomyces cerevisiae is a robust yeast that is capable of withstanding stressful conditions and has a high fermentation efficiency, rapid growth, effective sugar use, the ability to produce and consume ethanol, tolerance of high ethanol concentrations and low levels of oxygen, osmotolerance, thermotolerance, and cell activity in acidic environments, which are fundamental to its industrial use-fullness.

The genus and species names, Saccharomyces cerevisiae, also can be traced to earlier origins. Saccharomyces means sugar mold or fungus and cerevisiae has its origin in the Gaelic word kerevigia and the old French word cervoise.

Antonie van Leeuwenhoek described yeast in 1680 with the aid of handmade wax globules, whereas Charles Cagniard de la Tour reported in 1838 that yeast was responsible for alcoholic fermentation. By the end of the 19th century, improved strains were selected by the use of pure culture technique.

Whilst it is also useful for raising bread, producing fuel, and expressing desirable engineered proteins, it was the demand for alcoholic beverages that motivated the scientific study of yeast by Pasteur (1897) and the Carlsberg Research Laboratories (1896). Since then Saccharomyces cerevisiae has achieved a second distinction: it is the best understood genetic model organism. Saccharomyces cerevisiae was the first eukaryote to have its genome completely sequenced.
Saccharomyces cerevisiae

History of modern malting

Malting, one of the earliest ‘biotechnologies’ is a fascinating blend of pure and applied science with personal skills and judgments, all being used with industrial and commercial restraints and requirements in view.  The malting process results in development of amylase required for conversion of starch to fermentable sugars.

Many historians contend that primitive malting arisen as part of ordinary cooking, where it would have rendered the grain more nutritious and digestible. It was developed by trial and error.

The beer processing spread throughout Europe and Africa early in its history. In 1268, befoore he achieved sainthood, Saint Louis IX of France in 1268 enacted laws to ensure the quality of beer.

The making and selling of malts was often controlled. In Nurnberg in 1290 only barley was allowed to be malted, while in Augsberg between 1433 and 1550 beer was only to be made from malted oats.

The development of large breweries particularly in the 19th century, led to the industrialization of malting and a progressive increase in the size of production units and of the batches of grain processed.

In some respects, the malting technology used in the UK was beginning to differ from that used in North America and Continental Europe by the mid 1800s. Outside the UK, the introduction of mechanization and pneumatic malting was easily adopted.

The pro-active approach of the industry to research and development is exemplified by the observation that the malting industry was using gibberelic acid as a malting aid in commercial production of malt in 1960.
History of modern malting

History of brewing

Brewing is the processes preparing beverages through steeping a starch source in water and then fermenting with yeast. The brewer begins with malted barley or another grain cereal. Malted barley is dried, sprouted or geminated barley which the brewer grinds and then heats with warm water.

Scientific and archaeological evidence, researchers strongly believe that beer was first produced in the late fourth millennium BC by the Sumerian in Southern Babylonia.

The world’s oldest recipe, written on Sumerian clay tablets is for the making beer. A number of vats also found and one of the vats contained a number of small bowls, which are said to have been used for brewing purposes. 

Brewing practices had spread to Rome during Caesar’s reign and into other parts of Europe. Brewing flourished in Egypt until the end of the eight century AD when Muslim Arabs invaded the region and the art of brewing had spread far beyond the confines of the Middle East.

A major leap forward in brewing came in the 11th century when hops were introduced to beer in Europe. Hops gave beer a more satisfying flavor. Hops have certain antibacterial qualities and with hops beer will last longer than the ancient beers.

All the beer brewed in the seventeenth century used top fermenting yeast. During the second half of the nineteenth century European breweries were experiencing a transitional phase from which the modern brewing industry emerged.

The Danish scientist Dr Emil Chr. Hansen’s method for pure cultivation of yeast, in 1883 applied for the first time at the Carlsberg brewery in Copenhagen.
History of brewing