Why Does My Coffee Make My Stomach Hurt? (And How to Fix It)

If you've ever wondered, can coffee upset your stomach, the answer is unfortunately yes. We love coffee, but it doesn’t always love us. More than 20% of Americans experience acid reflux or heartburn, and many of us cite coffee as a triggering food. Other people report stomach cramps, nausea, sweating, and increased anxiety. Love coffee but can’t deal with the side effects? A few tweaks to your cup might help.

Why Does Coffee Hurt My Stomach

To understand why coffee hurts your stomach, first we need to start with a little science lesson. Coffee beans are the seed of a cherry-like fruit - a bright, sweet, and acidic fruit that infuses its seeds with citrus-y brightness. Acids and oils from the brewed beans are the main culprits in causing coffee heartburn, and the perceived acidity of coffee is affected by everything from how it’s grown, to how it’s roasted, to how it’s brewed.

How to Relieve Stomach Pain From Coffee

If you want to never experience a caffeine stomach ache again, the good news is you don't necessarily have to give up your morning brew entirely. A few simple adjustments to your routine can make a world of difference. Here are the best ways to enjoy your daily cup without the discomfort.

1: Switch to Cold Brew (The Simple Coffee Solution)

This is the time-tested and true way to reduce symptoms of acid reflux from drinking coffee. As you probably know, cold brew coffee is made by steeping coarse-ground coffee overnight in cold or room-temperature water. The long, slow, heat-free brewing process (called “extraction”) pulls the flavor, color, and caffeine jolt from the coffee, leaving many of the heavier oils and acids in the grounds.

For even lower-acid cold brew, pour it twice through a Chemex or other tight-weave filters. This will catch extra oils, leaving you with a super-smooth cup.

2: Choose Espresso to Prevent an Upset Stomach

If you frequently find coffee to be hard on your stomach, you might assume espresso is the worst offender. Many people think that because of its caffeine content relative to its volume, espresso will be the most intense on your internal system. But espresso is known for being easier on the stomach for a couple of reasons.

First, the combination of high pressure and short extraction time produces a different balance of chemical compounds than the same coffee would in a drip or pour over brew. Despite the pressure involved, the extraction is overall less efficient. This results in a brew that can highlight the sweetness and body of a coffee, with less emphasis on acidity.

Second, many coffee shops use espresso blends that are medium or dark roast, in order to get that classic caramel-chocolate flavor. The darker the roast, the less acidic the coffee because acid molecules break down the longer a bean is in the roaster. You can always ask a La Colombe barista about the roast and acid profile of the espresso they’re serving, to make sure it’s on the darker side.

If you prefer to make your morning cup at home, using espresso capsules is a foolproof way to get that quick, low-acid extraction without needing a fancy machine.

3: Avoid Drinking Coffee on an Empty Stomach

If you are wondering, is coffee on an empty stomach bad, the answer is generally yes. The effects of coffee are going to be stronger if you drink it on an empty stomach. If you’re planning on having coffee that morning, eat something substantial that will help absorb it, like toast or oatmeal. On those days you drink coffee, keep it to one cup and avoid other acidic foods like citrus, tomatoes, pineapples, or anything else that normally triggers acid reflux or stomach problems.

4: Pay Attention to Processing

When figuring out how to relieve stomach pain from coffee, paying attention to the bean itself is key. As we previously mentioned, the perceived acidity of coffee is affected by everything from growing conditions at origin to brewing methods in cafes. When buying a bag of coffee, check the altitude. Coffees grown at 1,300 meters and above are going to be higher in acid than lower-grown coffees.

Next, check the processing method. Washed coffees are often marked by a more acidic taste than natural coffees. It’s unclear whether washed coffees actually have more acid than natural coffees, but the perceived acidity is lessened in natural coffees due to the balance and body.

Third, when brewing at home, pay attention to grind size and brewing method. The finer the grind, the more acids are going to be extracted into the cup. If you brew on drip, try a larger grind size with more coffee - you should get a fuller, less acidic cup. Generally, immersion brewing (cold brew or French press) with a coarse grind is the best way to get a lower-acid coffee at home.

5: Swap to Tea if Coffee Still Hurts Your Stomach

Tea is awesome, and there’s absolutely nothing wrong with saying “bye” to the beans and switching over to a tea or tisane. Certain teas can give you the same caffeine boost that your coffee does. If you’ve tried all the tweaks above and find that coffee makes your stomach hurt no matter what you do, tea is a naturally lower-acid alternative that won't trigger acid reflux.

If you still need that morning energy, a strong black tea, oolong, or matcha green tea can give you the same caffeine boost that your coffee does, but with a gentler delivery system that is much easier on the digestive tract. On the other hand, if you are actively trying to soothe discomfort from a previous cup, herbal options like ginger, chamomile, or peppermint tea act as a natural stomach pain remedy to relieve cramping, reduce bloating, and settle your gut.

Front shot of someone pouring hot water into the Hario Teapot.

Enjoy Your Coffee Pain-Free

Ultimately, experiencing coffee stomach pain doesn't mean you have to give up your favorite morning cup forever. By experimenting with cold brew, trying darker espresso roasts, or making sure you eat a solid breakfast, you can usually find the perfect coffee remedy that works for your body's unique chemistry.

May 20, 2026

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