Potassium carbonates
Raising agent.
- Category
- Stabilisers
- Vegan
- Yes
- Vegetarian
- Yes
What it is
A carbonate salt used primarily as a raising agent in baking and an acidity regulator.
How it is used in food
Excellent leavening agent and acidity regulator often used in gingerbread and alkalized cocoa (Dutch processing).
Commonly found in- Cookies
- Crackers
- Cocoa powder
- Gingerbread
Health and safety
None for most people. It contributes potassium, so the one group who should pay attention is anyone on a potassium-restricted diet for kidney disease.
No numerical acceptable intake is set; it is permitted at quantum satis.
Regulatory status
| Region | Status | Notes |
|---|---|---|
| Australia & New Zealand FSANZ |
Permitted | Permitted under the FSANZ Food Standards Code. |
| European Union EFSA / European Commission |
Permitted | Authorised for food use under EU regulations (Annex II). |
| United States FDA (Food and Drug Administration) |
Permitted | Authorised for food use by the FDA (often GRAS for standard additives). |
Identification on labels
- E-number
- E501
Worth knowing
Historically known as "pearlash," it was the primary leavening agent in baking before baking powder was invented.
Conclusion
There is no reason to avoid potassium carbonates unless you are on a potassium-restricted diet for kidney disease. For everyone else, this raising agent and acidity regulator is completely safe and permitted without numerical limits. It adds potassium to foods like gingerbread and Dutch-processed cocoa without presenting any general health concern.
References
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Open the appEntry last reviewed 2026-07-28.
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