How to Make Coffee Less Acidic (Without Giving Up Your Favorite Coffee)

The easiest ways to make coffee less acidic are a darker roast, a coarser grind, cold brew, a splash of milk, or an alkaline add-in stirred into the cup. Some of these change how acidic your coffee tastes. Only a few actually raise its pH. Below are nine methods, what each one really does, and how to choose the one that lets you keep drinking the coffee you already love.

Why Coffee Is Acidic in the First Place

Coffee beans contain natural acids, mostly chlorogenic, quinic, citric and malic acid. Hot water pulls those acids out as it brews. According to the National Coffee Association, brewed coffee typically sits between pH 4.85 and 5.13. That's mildly acidic: about 100 times more acidic than water at pH 7, and far less acidic than orange juice or soda.

There's a catch that most guides skip. "Acidity" means two different things in coffee:

• pH is the chemistry: how acidic the liquid actually is.
• Flavor acidity is the bright, tangy taste coffee tasters talk about, and it isn't the same thing.

A smooth-tasting coffee can still sit near pH 5. That's why some fixes make coffee taste gentler without changing the chemistry much. Both matter, depending on what you're after.

9 Ways to Make Coffee Less Acidic

1. Choose a Darker Roast

The longer beans roast, the more their chlorogenic acids break down. That's why dark roasts usually taste smoother and less sharp than light roasts. The National Coffee Association puts it simply: the lighter the roast, the more acidic your coffee will tend to be. Roast level is the single easiest switch to make. The trade-off is flavor. Dark roasts lose much of the fruity, floral character of lighter coffees. Read more in our guide: is dark roast coffee less acidic?

2. Use a Coarser Grind and Don't Over-Extract

Fine grounds have more surface area, so they release acids faster. Coarser grounds, like the ones used for a French press, tend to make a gentler cup. Brew time matters too. Aim for a balanced extraction rather than a very short, sharp brew or a long, stewed one. Brewing temperature plays a part as well. Brewing in the commonly recommended range of roughly 195 to 205°F, rather than with water at a rolling boil, helps keep the harsher compounds in check.

3. Try Cold Brew (and Know What It Really Does)

Cold brew steeps coarse grounds in cold water for 12 to 24 hours. Many articles claim cold brew is "70% less acidic". Research doesn't back that up. A 2018 study in Scientific Reports found that cold brew and hot coffee had similar pH values, between 4.85 and 5.13. Hot coffee did contain more titratable acids, the acids you taste, so cold brew often tastes smoother even though its pH is about the same. More here: is cold brew less acidic?

4. Pick Beans Grown Lower and Roasted for Smoothness

Origin changes acidity. In that same 2018 study, Brazilian beans were the least acidic (about pH 5.10) and Ethiopian beans the most (about pH 4.85). Bean type plays a role too: Arabica, the most common specialty coffee, tends to taste brighter than Robusta. Lower-altitude coffees from Brazil and Sumatra are generally known for a smoother, nuttier profile than bright, high-grown coffees. "Low-acid" bags often rely on this kind of bean selection plus a slower or darker roast. When you shop, look for tasting notes like chocolate, nutty or caramel rather than citrus, berry or floral.

5. Drink It Fresh

Coffee left sitting on a warming plate keeps changing chemically, and it often turns sour and harsh. Brew what you'll drink, and use an insulated carafe instead of a hot plate. If you make a full pot, move it to a thermos right after brewing.

6. Add Milk or Creamer

Milk sits close to neutral on the pH scale, so a splash raises the pH of your cup a little and softens the sharp taste of acidity. Dairy, oat and almond milk all help with the taste. The effect on pH depends on how much you add. Here's the full answer: does adding milk to coffee make it less acidic?

7. Add a Tiny Pinch of Salt

Salt doesn't neutralize acid. It's chemically neutral, so it won't change the pH. What it does is soften bitterness on your tongue, which can make a harsh cup taste rounder. Use just a few grains, because too much tastes salty.

8. Try a Pinch of Baking Soda, or Eggshells

Baking soda (sodium bicarbonate) is alkaline, so it really does neutralize some of coffee's acid. The challenge is the dose. A tiny pinch, about 1/16 of a teaspoon, is plenty, and more makes coffee taste flat and salty while adding sodium. Crushed, clean eggshells stirred into the grounds before brewing are an old-fashioned version of the same idea, because shells are mostly calcium carbonate. Learn more about baking soda in coffee.

9. Stir in an Alkaline Coffee Add-In

This is the only option on the list built specifically to raise the pH of the coffee you already drink. Alkaline coffee add-ins use food-grade minerals such as potassium bicarbonate and magnesium citrate to neutralize part of the acid in your cup. Some are unflavored packets. Others, like DIRT, a plant-based coffee acid reducer, blend those minerals with organic spices such as Ceylon cinnamon, turmeric and ginger, so the cup gets warmer flavor along with a higher pH.

Which Method Changes the pH Most?

If you love your coffee exactly as it is, the methods in the last column marked "Yes" are the ones to try first.

A Simple Routine for a Less Acidic Cup

You don't need to use all nine methods. A few small habits stack up:

1. Keep your beans. Buy the coffee you like, and grind it a touch coarser if your brewer allows.
2. Watch the water. Let boiling water rest for about 30 seconds before brewing, so it sits in that 195 to 205°F range.
3. Brew only what you'll drink. Skip the warming plate and use a thermos for seconds.
4. Stir in your add-in. A splash of milk, or ½ teaspoon of an alkaline add-in, goes in right after brewing so it mixes evenly.
5. Taste and adjust. Try the routine for a week before changing anything else. Small tweaks are easier to judge one at a time.

The Easiest Option: Keep Your Coffee, Add DIRT

Switching roasts, buying "low-acid" beans or starting a cold-brew routine all mean changing the coffee you chose. DIRT takes the opposite approach. Brew your usual cup, stir in ½ teaspoon of ALKALIZING DIRT, and finish it with milk, creamer or nothing at all. Its blend of potassium bicarbonate, sodium bicarbonate and 135 mg of magnesium citrate is formulated to raise your coffee's pH. The organic Ceylon cinnamon, cacao, turmeric and ginger add an earthy, cinnamon-forward warmth.

Shop ALKALIZING DIRT

How to Make Coffee Less Acidic: FAQs

What is the least acidic way to make coffee?

Cold brew made from a dark-roast, low-altitude bean is the gentlest-tasting brew, though its pH is similar to hot coffee. To actually raise the pH of any coffee, add milk or an alkaline add-in.

Does adding salt to coffee make it less acidic?

No. Salt is chemically neutral, so it doesn't change coffee's pH. A few grains can soften bitterness, which makes some cups taste smoother.

What can I add to coffee to make it less acidic?

Milk or creamer, a tiny pinch of baking soda, crushed eggshells in the grounds, or an alkaline coffee add-in. Only alkaline ingredients like baking soda or mineral blends meaningfully raise the pH.

Is cold brew less acidic than hot coffee?

It tastes less acidic, because hot water extracts more of the acids you taste. But a 2018 study found cold brew and hot coffee had similar pH values.

Can I make my regular coffee less acidic without changing brands?

Yes. Adjust the grind, drink it fresh, add milk, or stir in an alkaline add-in such as DIRT. None of these require new beans.

DIRT is formulated to change the pH of your beverage. It is not intended to diagnose, treat, cure or prevent any disease. If coffee bothers you, talk with a qualified healthcare professional.

Sources

1. National Coffee Association, "Is coffee acidic?" — https://www.aboutcoffee.org/health/faq/is-coffee-acidic/
2. Rao, N.Z. & Fuller, M. (2018). "Acidity and Antioxidant Activity of Cold Brew Coffee." Scientific Reports, 8, 16030 — https://www.nature.com/articles/s41598-018-34392-w

Keep reading: What is the pH of coffee? · Is dark roast coffee less acidic? · Back to all Resources