
Coffee is acidic, with a pH range of 4.85-5.13.
Understanding coffee's pH level matters because this acidity can significantly impact your gut health and digestion.
If you experience digestive issues or acid reflux after drinking coffee, you're not alone.
In this article, you'll learn exactly why coffee is acidic, how it affects your gut health, and discover natural alternatives that can be gentler on your digestion.
Understanding pH Levels
The pH scale measures how acidic or alkaline a substance is, ranging from 0 to 14.
Pure water sits at a neutral 7, while anything below 7 is acidic and above 7 is alkaline.

Your body naturally maintains different pH levels throughout your digestive system.
Your stomach needs to be highly acidic to break down food, but the rest of your digestive system, particularly your intestines, functions best in a more alkaline environment.
This is why an alkaline diet can support overall gut health.
It helps maintain the optimal pH balance throughout your digestive tract after food leaves your stomach.
Soft drinks are highly acidic at around pH 2.5, while herbal teas tend to be closer to neutral. Coffee falls between these extremes at a pH of around 5, making it moderately acidic.
In comparison, Cosmic Hue sits on the alkaline side of the scale and works in harmony with your body's natural pH balance.
Your body maintains different pH levels throughout digestion, with coffee sits around pH 5 (acidic).
What Makes Coffee Acidic?
Coffee contains nine primary acids that contribute to its distinctive taste and pH level.
The most abundant is chlorogenic acid, followed by quinic, citric, and acetic acids. These natural compounds are released during the brewing process, creating coffee's characteristic bright and complex flavour profile.
Several factors influence just how acidic your coffee becomes.
The roasting process plays a significant role. Lighter roasts typically contain more acids than darker roasts because extended roasting breaks down acidic compounds.
Your brewing method also impacts acidity levels. For instance, cold brew produces less acidic coffee because fewer acids are extracted at lower temperatures.
The origin of your coffee beans and how finely they're ground also affect acidity. Beans from higher altitudes often develop more acidic compounds, while a finer grind size can lead to more acid extraction during brewing.
If you're sensitive to coffee's acidity and experience symptoms like heartburn, stomach discomfort, or acid reflux, switching to a naturally alkaline beverage might be your best solution.
The acidity in coffee comes from nine natural acids, with brewing method and roast level affecting the acidity.
Best Alkaline Coffee Alternatives
When looking for alternatives to acidic coffee, it's important to choose drinks that not only avoid triggering digestive issues but actively support your gut health.
Plant-based hot drinks can offer this dual benefit, providing both alkaline properties and gut-supporting ingredients.
Cosmic Hue stands out as a caffeine-free alternative that’s specifically formulated by Manny, a Crohn’s disease survivor, to support digestive wellness.
Its unique blend includes marshmallow root, which helps form a protective layer in your gut, along with other alkaline plants that work together to maintain healthy pH levels in your digestive system.
Making the switch from coffee to alkaline alternatives doesn't mean sacrificing your morning ritual. Many people find that plant-based beverages can provide similar comfort and satisfaction while offering additional health benefits.
Herbal teas like Cosmic Hue can provide the comfort of a hot morning drink while supporting digestive health.
Supporting Your Gut Health Beyond Drinks
Your gut truly is your second brain, influencing everything from your mood to your immune system.
Choosing alkaline drinks is important, but it's just one part of supporting your overall gut health.
Manny's journey with Crohn's disease led him to develop a comprehensive approach to gut healing.
His 4-step gut healing process combines alkaline nutrition with other gut-supporting practices like exercise, stress reduction and sleep.
This holistic approach recognises that true gut health comes from consistent, mindful choices about what we consume and how we care for our digestive system.
True gut health requires a holistic approach that goes beyond what you drink, incorporating lifestyle factors.
FAQs
How do you reduce the acidity in coffee?
To reduce coffee acidity, opt for dark roasted beans and use cold brew methods, as lower temperatures extract fewer acidic compounds. Adding a pinch of baking soda can help neutralise acidity, though this may slightly alter the taste. You can also choose low-acid coffee beans, which are specifically processed to reduce their acidic content. However, it can be helpful to avoid this acidic drink altogether.
Does milk neutralise acid in coffee?
Milk helps reduce coffee's acidity due to its calcium content and natural buffering properties. The proteins in milk create a protective barrier in your stomach, helping to minimise acid-related discomfort. However, while milk makes coffee less acidic, it doesn't make it alkaline.
Is decaf coffee less acidic?
Decaf coffee has approximately the same acidity level as regular coffee, with only a minimal pH difference. The decaffeination process doesn't significantly affect the natural acids that give coffee its characteristic taste. If you're sensitive to acidity, switching to decaf alone won't solve the issue.
Conclusion
Coffee is acidic, with a pH between 4.85-5.13. This acidity comes from natural compounds released during brewing and can be influenced by factors like roasting level, brewing method, and bean origin.
You can reduce coffee's acidity through methods like cold brewing or choosing darker roasts, but these acids can still impact sensitive digestive systems and trigger symptoms like heartburn or stomach discomfort.
If you're looking to support your gut health while enjoying a comforting hot drink, try Cosmic Hue. It is a naturally alkaline, caffeine-free coffee alternative specifically formulated to soothe your digestive system.