Why do czech beers have degrees

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Last updated: April 8, 2026

Quick Answer: Czech beers have degrees to indicate their original gravity, which measures the sugar content in the wort before fermentation. This system, known as "stupňovitost" in Czech, dates back to the 19th century and is regulated by Czech brewing standards. For example, a 10° beer has about 4% alcohol by volume, while a 12° beer typically has around 5% ABV. The degrees range from 3° to 20°, with most Czech lagers falling between 10° and 12°.

Key Facts

The degree system measures original gravity in Plato or Balling scales, with 1° representing 1% sugar by weight in the wort.
Czech brewing tradition dates to the 13th century, with the modern degree system formalized in the 19th century during industrialization.
Most Czech beers are between 10° and 12°, with 10° beers having about 4% ABV and 12° beers about 5% ABV.
The Czech Republic has the highest beer consumption per capita globally, at approximately 140 liters per person annually as of 2023.
Czech beer degrees are protected by the Czech Beer and Malt Association, ensuring quality under the "Czech Beer" designation since 2008.

Overview

The Czech degree system for beer, known as "stupňovitost," originated in the 19th century as breweries industrialized and needed standardized measurements. It refers to the original gravity of the wort—the sugar content before fermentation—measured in degrees Plato or Balling. This tradition is deeply rooted in Czech brewing history, which dates back to monasteries in the 13th century, such as the Břevnov Monastery in Prague founded in 993 AD. By the 1840s, Czech breweries like Pilsner Urquell (founded 1842) popularized bottom-fermented lagers, and the degree system became widespread to classify beer strength. Today, it's regulated by Czech brewing standards, with degrees ranging from 3° (very light) to 20° (strong specialty beers), though most lagers are 10° or 12°. The system is unique to Central Europe and reflects the Czech Republic's status as a global beer leader, with over 400 breweries producing around 20 million hectoliters annually.

How It Works

The degree system measures the original gravity of beer wort, which is the density of sugars dissolved in water before yeast fermentation begins. It uses the Plato or Balling scale, where 1° equals 1% sugar by weight. Brewers calculate this by taking a sample of the wort and using a hydrometer or refractometer to measure its specific gravity. For example, a 10° beer has a wort with 10% sugar content, which yeast converts into alcohol and carbon dioxide during fermentation. The final alcohol by volume (ABV) is roughly 0.4 times the degree number, so a 10° beer yields about 4% ABV, while a 12° beer yields about 5% ABV. This process is standardized under Czech brewing laws, ensuring consistency across brands like Budvar and Staropramen. The degrees also influence flavor, as higher-gravity worts produce more maltiness and body, key to Czech lagers' characteristic balance.

Why It Matters

The degree system matters because it preserves Czech brewing heritage and ensures quality in a country renowned for beer. It helps consumers choose beers based on strength and style, with 10° and 12° lagers being the most popular for their drinkability and flavor. This classification supports the Czech Republic's economy, as beer tourism attracts millions annually, contributing to cultural identity. Internationally, it distinguishes Czech beers in markets like the EU, where the "Czech Beer" designation is protected. The system also promotes brewing innovation, allowing for diverse products from light 3° beers to strong 20° specialties, while maintaining traditional methods that date back centuries.