Is Coffee Acidic? Discover the Truth About Coffee Bean pH Level

Is Coffee Acidic? For many of us, coffee is a daily necessity. But have you ever wondered if your favorite morning brew is acidic? The answer is yes, coffee is acidic, but the degree of acidity can vary depending on several factors, such as the type of bean, the roast, and the brewing method.

The acidity of coffee can lead to digestive discomfort, such as heartburn or acid reflux. Additionally, some people may be more sensitive to the acidic compounds found in coffee than others. So, it’s essential to understand what makes coffee acidic and how to reduce its acidity.

Key Takeaways:

  • Coffee is acidic, but the degree of acidity can vary.
  • The acidity of coffee can lead to digestive discomfort.
  • Understanding what makes coffee acidic and how to reduce its acidity is important for those who are sensitive to its acidic compounds.

What Makes Coffee Acidic?

Coffee is often associated with acidity, but what makes it that way? It turns out that coffee beans, just like many other foods and drinks, contain acids. These acids contribute to the coffee’s flavor and aroma but also affect its perceived acidity.

The primary acid in coffee is chlorogenic acid, which gives coffee its tart taste. However, other acids such as quinic acid, citric acid, acetic acid, and malic acid are also present in varying amounts, contributing to the overall acidity of the coffee.

The acidity of coffee is also influenced by the brewing method used, as some methods extract more acids than others. For example, coffee made with a French press tends to be more acidic than coffee made with a drip coffee maker.

Another factor affecting coffee’s acidity is the roast level of the beans. Dark roasts tend to have lower acidity than light roasts because the acidity is reduced during the roasting process.

It’s important to note that acidity in coffee doesn’t necessarily refer to pH levels. Coffee is slightly acidic on the pH scale, with a pH of around 5. But when we talk about coffee acidity, we usually refer to the perceived sour or tart taste.

“The main acid in coffee is chlorogenic acid, which is responsible for giving coffee its tart taste.”

Acidity Levels in Different Coffee Roasts

The acidity level in coffee beans varies depending on the type of roast. Different roasts bring out different flavors, and it’s essential to understand how the roast impacts the acidity level in coffee to choose the best brew for your taste buds.

Generally, lighter roasts have higher acidity levels than darker roasts. Lightly roasted coffee has a bright and tangy flavor with a high level of acidity. The acidity level decreases as the roast gets darker, and the coffee becomes less tangy, sweeter, and heavier. The dark roasts have low acidity levels and offer a smooth, bitter, and almost caramelized taste.

Here’s a breakdown of the acidity levels in different coffee roasts:

Type of RoastAcidity Level
Light RoastHigh
Medium RoastModerate
Dark RoastLow

If you prefer a tangy, bright coffee with a high acidity level, go for a light roast. Try a dark roast if you want a smoother, less acidic coffee. For a balanced flavor, opt for a medium roast.

It’s worth noting that the acidity level in coffee is not the same as pH level. While coffee is considered acidic, it has a pH level of around 5, which is neutral. pH measures how alkaline or acidic a substance is and ranges from 0 to 14. Coffee is, therefore, only slightly sour and is unlikely to cause severe stomach issues unless you have a pre-existing condition such as acid reflux.

Coffee pours from a French press

How to Reduce Acidity in Your Coffee

If you love coffee but find that its acidity upsets your stomach or causes another discomfort, there are several things you can do to reduce the acidity in your brew. Here are some tips to help you enjoy your coffee without the harsh acidity:

Brew with Cold Water

Using hot water to brew your coffee can extract acids from the beans and make your cup more acidic. Instead, try brewing with cold water. This process will remove fewer acids from the coffee beans and produce a smoother, less acidic brew.

Use Low-Acid Beans

Some coffee beans are naturally less acidic than others. Look for beans labeled as “low-acid” or “acid-free” to reduce the acidity in your cup. These beans are often roasted for longer periods at lower temperatures, which can reduce their acidity.

Add Milk or Cream

Adding milk or cream to your coffee can help neutralize the acidity and make drinking more enjoyable. The fat in dairy products can help bind with the acids in the coffee and reduce their impact on your stomach.

Try Alkaline Water

You can try brewing your coffee with alkaline water if you want a more expensive option. Alkaline water has a higher pH level than regular water and can help neutralize the acids in your coffee.

Avoid Dark Roasts

Dark roasts tend to be more acidic than lighter roasts. If you are sensitive to acidity, try sticking with lighter roasts to reduce the acidity in your cup.

Concentrate on the Grind

The grind of your coffee can also affect its acidity. Finely ground coffee can have more acidity than coarsely ground coffee. Try experimenting with different grinds to find the one that produces a cup with the most minor acidity.

Implementing some of these tips can help you enjoy your coffee without the harsh acidity. Experimenting with different techniques can lead to an incredible brew that is easy on your stomach.

Low-Acid Coffee Options

For those who love the taste of coffee but suffer from acid reflux or other gastrointestinal issues, low-acid coffee is a great alternative. Fortunately, several options on the market offer a milder taste without sacrificing the caffeine kick.

One popular choice is coffee which has undergone the Swiss water process, which removes caffeine and up to 99% of the acidic compounds from the beans. This results in a smoother, less bitter cup of coffee that is much easier on the stomach. Look for brands that advertise “Swiss Water Process” on their packaging.

Another option is to choose coffee that is naturally low in acid. For example, some coffee varieties grown in Brazil and Sumatra are naturally low in acid and can provide a satisfying cup without unpleasant acidity. Look for brands advertising “low-acid” or “stomach-friendly” packaging.

A third option is to try cold-brewed coffee, made by steeping coffee grounds in cold water for several hours. This produces a coffee with a smoother taste and lower acidity levels. Cold-brewed coffee is available at many coffee shops but can also be made at home using a French press or a specialized cold-brew coffee maker.

Swiss Water Processed CoffeeLess acidic, smoother tasteMay be more expensive
Naturally Low-Acid CoffeeSatisfying taste, lower acidityAvailability may vary
Cold-Brew CoffeeSmooth taste, lower acidityRequires extra time to prepare

Whichever option you choose, pay attention to the roast level. Darker roasts tend to have lower acidity levels than lighter roasts. Additionally, consider adding a splash of milk or creamer to your coffee, as the fats in these products can help neutralize some of the acidity.

The Effects of Coffee Acidity on Your Health

The acidity of coffee has been a topic of debate among health professionals for years. While some believe that high acidity in coffee can lead to adverse health effects, others argue that the acidity in coffee is not significant enough to cause harm.

Some studies have shown that drinking coffee can lead to acid reflux and heartburn in some people, which can cause discomfort and irritation. Additionally, coffee has been shown to increase the production of stomach acid, which can exacerbate digestive issues and lead to ulcers in some individuals.

On the other hand, some research has suggested that the antioxidants found in coffee may have health benefits, such as reducing inflammation, protecting against liver disease, and reducing the risk of certain types of cancer. However, it is important to note that the acidity of coffee may depend on individual factors, such as brewing method and roast level.

Ultimately, whether or not coffee’s acidity significantly impacts your health may depend on your tolerance and any underlying health conditions you may have. It is always essential to speak with your healthcare provider if you have concerns about the impact of coffee on your health.

Brewing Methods and Coffee Acidity

The way you brew your coffee can affect its acidity. Some brewing methods, such as espresso, French press, and percolators, can produce a more acidic cup of joe. These methods allow more oils and acids to be extracted from the coffee beans.

On the other hand, drip coffee makers and pour-over methods tend to yield a less acidic cup of coffee. This is because the water is in contact with the beans for a shorter period, which results in less acidity being extracted.

If you want to reduce the acidity in your coffee, consider using a drip coffee maker or a pour-over method. These methods will produce a smoother, less acidic cup of coffee.

It’s also worth noting that the type of coffee bean you use can affect its acidity. Some coffee varieties, such as Arabica, are naturally less acidic than others, such as Robusta. If you’re looking for a less acidic coffee, try using Arabica beans instead of Robusta beans.

Types of Acids Found in Coffee

Coffee contains a variety of acids, each with its unique characteristics. Below are the most common types of acids found in coffee:

AcidFlavor Profile
Chlorogenic acidIt creates a sharp and vinegary taste in coffee
Quinic acidContributes to the sour and tangy taste in coffee
Citric acidFound in lower concentrations and adds a citrusy flavor to coffee
Malic acidFound in small amounts and contributes to the tartness in coffee
Acetic acidCreates a sharp and vinegary taste in coffee
Phosphoric acidAdds a fruity and wine-like flavor to coffee

It’s important to note that the concentration of these acids varies depending on various factors such as the type of bean, roast level, and brewing method. Understanding the types of acids in your coffee can help you better identify the flavors you enjoy and make informed decisions when choosing your brew.


While coffee may have a reputation for being acidic, the reality is that its acidity levels are relatively low. Acidity is an essential component of coffee as it can enhance its flavor and aroma. However, for those who suffer from acid reflux or other related issues, it is essential to be mindful of the acidity levels in their coffee.

The Solution: Low-Acid Coffee

If you find that regular coffee is too acidic for your liking, there are low-acid options available, including those made from beans that are naturally low in acidity or those that have undergone a special roasting process to reduce acidity levels. Additionally, there are ways to reduce the acidity in your coffee, such as adding milk or cream or opting for a cold brew.

Consider Your Health

It is also important to be aware of the potential health effects of consuming too much acidic coffee. Acid reflux, heartburn, and even tooth enamel erosion are just a few of the potential issues. It is crucial to keep in mind that moderation is key and to consider your personal health needs when it comes to coffee consumption.

Brewing Methods

The brewing method you choose can also impact the acidity of your coffee. For example, French press and espresso tend to produce higher acidity brews, while drip coffee and cold brew produce lower acidity levels. Experimenting with different brewing methods can help you find the one that produces a coffee that best suits your taste and tolerance for acidity.

Types of Acids in Coffee

Finally, it is worth noting that there are several types of acids found in coffee, each with its own distinct flavor profile. These include chlorogenic acid, acetic acid, quinic acid, and citric acid. Understanding the role these acids play in coffee and how they affect its taste can help you appreciate coffee on a deeper level.

Overall, when it comes to coffee acidity, there is a lot to consider. By being mindful of the acidity levels in your coffee and experimenting with different brewing methods and types of beans, you can find a coffee that not only tastes great but also agrees with your body.


Q: Is coffee acidic?

A: Yes, coffee is naturally acidic due to various acids.

Q: What makes coffee acidic?

A: Coffee contains chlorogenic acid, quinic acid, and citric acid, contributing to its acidity.

Q: What are the acidity levels in different coffee roasts?

A: Lighter roasts tend to have higher acidity, while darker roasts have lower acidity levels.

Q: How can I reduce acidity in my coffee?

A: You can reduce acidity by using darker roasts, cold brewing your coffee, or adding milk or cream to neutralize the acidity.

Q: Are there any low-acid coffee options available?

A: Yes, low-acid coffee options are available in the market, specifically processed to be less acidic.

Q: What are the effects of coffee acidity on your health?

A: High coffee acidity can cause acid reflux, heartburn, or digestive discomfort in some individuals.

Q: Do brewing methods affect coffee acidity?

A: Yes, brewing methods such as cold brewing and using a French press can lower acidity than methods like espresso.

Q: What types of acids are found in coffee?

A: Coffee contains various acids, including chlorogenic acid, quinic acid, acetic acid, and citric acid.

Q: Conclusion

A: Coffee is naturally acidic, but acidity levels can vary based on factors like roast level and brewing method. If you experience acidity-related discomfort, opting for low-acid coffee options or adjusting your brewing methods can help mitigate the effects.