Cowboy holding a mug of acidic coffee

Your Guide to Stomach-Friendly Coffee: Less Acidity, More Enjoyment

Do you love coffee but struggle with acid reflux or a sensitive stomach? Finding a great low acid coffee doesn't mean sacrificing flavor. This guide explores how processing, roasting, and brewing impact coffee acidity and how coffee can affect your digestive system.

How Coffee Processing Affects Acidity (and Your Stomach)

First, let's explore how coffee beans are processed before they even reach the roaster. The two main methods are washed (wet) and natural (dry). Washed coffees tend to have a brighter, more pronounced acidity. On the other hand, dry-processed or natural coffees, where the beans are dried with the fruit still on, often result in lower acidity, making them a good choice if you’re seeking stomach-friendly coffee.

A farmer inspecting cherries on Arabica coffee plants.

Photo by Carlos Felipe Ramírez Mesa on Unsplash

There's also a unique method called wet-hulled processing, primarily used in Indonesia, especially in regions like Sumatra and Sulawesi. This method is known for producing coffees with low acidity and a heavy body, often with earthy or spicy notes. So, if you're seeking a gentler brew, exploring coffees from Brazil or Indonesia that are dry-processed or wet-hulled could be beneficial.

Why Dark Roast Coffee Might Be Better for Acid Reflux

Next up, let's talk about roast levels. You might have heard that darker roasts are less acidic, and research tends to back this up. The longer and hotter roasting process breaks down many of the acids in coffee beans.

Dark roasted coffee beans

Interestingly, a study in the Molecular Nutrition & Food Research journal found that dark roast coffee is easier on the stomach than light and mild roasts because it helps prevent the buildup of hydrochloric acid. This is linked to a compound called N-methylpyridinium (NMP) that forms during roasting, with higher levels found in darker roasts. So, if you're looking for a coffee that's less likely to cause heartburn, opting for a dark roast could be a good strategy.

Cold Brew Coffee: A Gentler, Less Acidic Choice?

Finally, think about your usual brewing method. If you're reaching for hot water, you might want to consider giving cold brew a try. Research suggests that cold brew coffee, made by steeping grounds in cool water for an extended period, can be less acidic than your regular hot cup.

A glass of cold brew coffee

Why the difference? It comes down to how the coffee compounds are extracted. Hot water pulls out more acids, including those that can be a bit harsh on your stomach. Cold water, on the other hand, is gentler, leading to a brew that many find smoother and less likely to cause digestive issues. While some studies show that the overall pH (a measure of active acidity) might be similar between hot and cold brew, cold brew tends to have lower concentrations of total acids, which could be the key to its gentler nature. Many people who struggle with heartburn or acid reflux find cold brew to be a game-changer.

Pro Tip: You can still enjoy a hot cup by adding boiling water to cold brew concentrate – it maintains the lower acidity achieved during the cold brew process.

Finding Your Perfect, Stomach-Friendly Cup

Ultimately, finding the low-acid coffee that works best for you might involve a little experimentation. Consider trying cold brew, opting for darker roasts, and exploring coffees that have been naturally processed or wet-hulled. Pay attention to how your body feels, and you'll be well on your way to enjoying your coffee without the unwanted side effects.

Looking for a gentler brew? We recommend our dark-roasted Elbow Grease (single origin Sumatra) for a low-acid option, or our medium-dark roasted The Long Haul (single origin Mexico) for a balanced cup -- or cold brew!

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