Sodium Acid Sulfate
This is what the ingredient is.
Sodium acid sulfate (sodium bisulfate) is an acidic salt used as an acidifier and leavening acid.
Here is why it shows up on the label.
Used to lower pH in beverages and as a leavening acid in baking. Also used in household cleaners.
Here is what food agencies say.
The FDA lists it as Generally Recognized as Safe. European food agencies allow it. Permitted for specific food applications.
Here is what research has found.
Dissociates to sodium and sulfate ions, both common dietary components. an FAO/WHO expert committee confirms safety.
Here are a few things worth knowing.
Generally safe in food. Contributes to sodium intake. Acidic - avoid direct contact with skin.
Sources
- FDA GRAS Database
- EFSA Scientific Opinion
- JECFA Monograph
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.