The Truth about Coffee Acidity: How to Brew Coffee Less Acidic?

Did you know that 54% of Americans, older than 18, drink coffee? Some drink it for pleasure while some consume it to help them stay awake during work hours. No matter what our reasons are, we have to admit; this beautiful, aromatic beverage has a significant role in our daily routine.

However, many coffee drinkers complain of coffee acidity as something that causes reflux or weird stomach ache. This is one of the reasons why people are starting to look for “low-acid coffee.” Today, we will explain what role acidity has in coffee’s taste and how to make it less acidic on your own. Enjoy!

Coffee Acidity Debunked

Even though acidity might sound scary, it is actually one of the critical components that creates coffee’s unique taste. When you hear professionals talking about coffee acidity, you will realize it is a desirable quality that refers to the presence of various acids which influence the flavor note of your coffee.

Acidity is what brings the tartness or tanginess to its taste. In fact, coffee acidity is the reason you feel that familiar fresh taste on the tip and the sides and of your tongue, and sometimes even on the back of your tongue or jawbone.

What science taught us is that acidity can be measured on the pH scale. The number 7.0 serves as an indicator of neutrality. All of the numbers below 7 point to acidic characteristics, while numbers above 7 indicate alkaline characteristics. For example, lemon juice has a pH value of 2.0 while milk registers at 6.5.

Black coffee has a pH value of 5.0, and typical breakfast blend coffee is even lower, landing somewhere around 4.7. Such coffees, which have high acidity are often described as crisp, bright and tangy. On the other hand, low-acidity coffees feel much smoother in your mouth, with a gentle finish.

Which Acids can be found in Coffee?

Green coffee beans contain a lot of different acids — some of them are bad, while some are good. A significant number of those acids goes away during the roasting process, but some remain. Fortunately, remaining acids are not dangerous for our health, and they can be found in other food too, such as oranges, apples or vinegar.

Here’s the list of most commonly found coffee acids:

  • Quinic acid – It is water soluble and makes your beverage slightly sour and sharp, adding the complexity to the flavor of your daily cup.
  • Chlorogenic acid – It is a powerful antioxidant, and robusta coffees contain around 25% more of it than arabica types.
  • Citric acid – Fine high-grown arabica coffees have a higher content of citric acid than robusta types.
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    Phosphoric acid – It is very tart and considered desirable in Arabica coffees. It brings out the brightness and the vibrancy of the flavor.
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    Acetic acid – Adds bitterness and vinegar-like flavor to over-mature coffees.

4 Witty Ways to Brew Coffee less Acidic

Now that you know what coffee acidity means, and which acids can be found in your coffee, one question remains – how to make your coffee less acidic?

Here are some suggestions:

1.   Add some crushed eggshells or baking soda

Calcium in eggshells is quite alkaline which means it will reduce the acidity of your acidic brew. Adding crushed eggshells directly in your cup sounds a bit quirky, and it won’t be useful either. What you want to do instead, is mix the eggshell powder with ground coffee beans and proceed to brew as you usually would.

The same goes for baking soda. Mix it with ground coffee beans, just make sure to use small amounts of it, or you’ll end up spoiling the taste. Just a pinch is more than enough.

2.   Cold brew your coffee

Cold brewing is probably the most famous way of reducing the acid content in your coffee. The easiest way of performing it is to use the Toddy Cold Brew System. This coffee maker offers 67% reduction in acidity when compared with hot brew methods. However, if you don’t want to buy the product, there are numerous simple recipes and directions on how to do it on your own. We would recommend you to try out this one.

3.   Use filtered instead of tap water

Tap water often contains harmful chemicals such as fluoride or heavy metals which make it acidic. So, if you start brewing with slightly acidic water and then add acidic ground coffee; the result will be a very acidic beverage and probably some stomach ache. Don’t hesitate from investing in high-quality filtered water. It will make your coffee more alkaline and improve your health at the same time.

4.   Add cardamom to your coffee

Cardamom pods are the aromatic seeds from ginger family, often used in cooking and medicine. This spice is alkaline, which means it will neutralize the coffee acidity. All you have to do is add one cracked cardamom seed to your ground coffee beans and continue your brewing process as you normally would.

If you like it, you can experiment by adding a few more cardamom pods to enhance the results. In Middle Eastern cultures, cardamom seeds are often ground with coffee beans, so you shouldn’t worry about it spoiling the taste.


Today, we’ve presented many useful facts about coffee acidity and gave you some tips and tricks that will help you brew your coffee less acidic. You can experiment with these directions and find which one suits you the best, or combine them for the best results. In addition, we think you should refer to the Brands of Low Acid Coffee

If you have more ideas on how to reduce acidity in your coffee or you have any further questions, feel free to share them with us in the comment section below. Pour yourself a cup of coffee and start typing. We will leave you with this powerful quote:

“As long as there was coffee in the world, how bad could things be?” ― Cassandra Clare

If you have more ideas on how to reduce acidity in your coffee or you have any further questions, feel free to share them with us in the comment section below. Pour yourself a cup of coffee and start typing. We will leave you with this powerful quote:

“As long as there was coffee in the world, how bad could things be?” ― Cassandra Clare

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