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What is the pH of Beer

Beer is one of the world’s oldest and most popular beverages.

Over time, brewers have refined their methods for creating this delicious drink, including paying close attention to the pH levels of beer.

But what exactly is pH? What makes it such an important factor in brewing beer? And what pH levels can you expect from different varieties?

Read on to get all your questions answered!

What Is pH?

pH stands for ‘potential of hydronium’, which is a concept concerning ions in solution. It is a measure of the acidity or alkalinity of a liquid and can be measured on a scale from 0-14 – with 0 being the most acidic and 14 being the most alkaline.

An ideal beer will have a pH that falls between 4-6.

Measuring the pH of Beer

There are several techniques for measuring the pH of beer, though most brewers use litmus paper strips to achieve accurate results.

The strips turn either blue or red depending on whether they detect an acidic or alkaline solution, giving them an easy way to check the pH level quickly and accurately.

What Is the Ideal pH for Beer?

The ideal pH for beer lies between 4-6. Beers with a lower pH will contain stronger flavors as more acids are present to give them their unique taste.

However, beers with too low of a pH may be undrinkable as they can become too sour and acidic, while those with too high of a pH risk losing much of the flavor that makes them enjoyable in the first place.

Why pH Is an Important Factor in Brewing Beer

The correct balance between acidity and alkalinity is essential in brewing great-tasting beer:

  • Too low and beers will have too much bitterness – Too high and beers will lose much of their flavor
  • Acidic properties help preserve bottled beer over time – Alkalinity helps promote head retention
  • The right balance helps bring out different flavors within beers – Low enough acidity will prevent yeast from becoming stressed out

Common Beer Varieties and Their pH Levels

Here is a quick look at some common beer varieties and their average PH levels:

  • Lagers: 5-6
  • Pilsners: 4-4.4
  • IPAs (India Pale Ales): 4-5
  • Stouts: 4-5
  • Pale Ales: 4-5


As you can see, understanding the proper acidity levels plays an essential role when it comes to creating great-tasting beers!

By making sure that your brews fall within that sweet spot between 4–6 on the PH scale you’ll be able to make sure that you create flavorful brews each time that is sure to please your customers!

Author Image Fabian
I’m Fabian, homebrewer and beer taster. I’m also the editor of Beer100. I love travelling the world and trying out new handcraft beer and different beer styles. I’m not an expert in brewing beer, but I know a few things about beer, which I share on this blog. If you need help or have a question, please comment below.

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