Is coffee acidic?

Yes, coffee is mildly acidic, but considering how acidity is generally measured in food and beverages, only slightly so.

To be considered acidic, foods generally need to have a pH level of 4.6 or lower. Acidity is measured using the pH scale, which has a range of 0 (the most acidic) to 14 (the most basic, or the opposite of acidic), with water in the middle at 7 (neutral). Brewing coffee releases the acids naturally found in coffee, making it mildly acidic, with a pH of 4.85 to 5.13.

H2: Factors that may influence acidity

Some studies indicate that how coffee is roasted, ground, and brewed can all play a role in its acidity. You can try different types of coffee and brewing methods to see what works best for you.

  • Roasts: The lighter the roast, the more acidic your brewed coffee will tend to be. Try a darker roast if you want to minimize acidity.
  • Grind size: Smaller grounds may allow more acid to be extracted during the brewing process. Try coffees made with coarser grounds, like French press or cold brew.
  • Brewing method: A longer brewing time and a lower brewing temperature both may lower acidity. Cold brew coffee meets both of these criteria.

Learn more about coffee and health, and browse our research library.

All information presented is general and not intended as a substitute for individualized healthcare or advice. Please consult your healthcare provider about your personal health.