Balancing the pH
Coffee usually has a pH around 5. Potassium bicarbonate is alkaline, so adding a small amount moves the cup closer to neutral. In Chroma’s internal testing, a few drops reduced measured acidity by more than 30%.
The science is simple
Coffee naturally sits on the acidic side of the pH scale. Chroma uses a tiny amount of potassium bicarbonate to bring each cup closer to balance.

What happens in your mug
Coffee usually has a pH around 5. Potassium bicarbonate is alkaline, so adding a small amount moves the cup closer to neutral. In Chroma’s internal testing, a few drops reduced measured acidity by more than 30%.
Neutralizing some of the excess acidity can soften the acidic bite that many people perceive as bitterness, creating a smoother flavor profile.
A less acidic cup may feel gentler for coffee drinkers with sensitive stomachs. Individual experience varies, and Chroma is not intended to diagnose or treat any condition.
The complete explanation
The original chemistry guide is here in full, reorganized so the key information is easier to scan and understand.
Potassium bicarbonate is a colorless, odorless, mildly alkaline compound used in food preparation and other everyday applications. In coffee, its alkalinity allows it to react with naturally occurring acids and gently raise the drink’s pH.
Coffee’s natural acids help create its character, but excess acidity can taste sharp and may be uncomfortable for some people. Potassium bicarbonate neutralizes a portion of that acid, helping the cup move toward balance without adding sweetness or flavoring.
Add a few drops of Chroma Coffee Drops to a finished cup, stir, and taste. A little goes a long way, so start with the recommended amount and adjust only as directed.
Potassium bicarbonate should be used in moderation. Do not exceed the recommended amount. If you have a health condition or take medication that affects potassium, ask your healthcare provider before making a meaningful change to your diet.
Chroma offers a simple way to reduce excess acidity while keeping your chosen beans, roast, and ritual intact. Coffee is personal: start with a few drops, taste, and find the balance that works for your cup.

Two listed ingredients
That is the complete ingredient list. Use only as directed. If you manage a health condition or take medication that affects potassium, ask your healthcare provider before use.