Quick Answer: Akanwu (potash) is a natural dry mineral salt used in West African cooking to emulsify palm oil and water (making the thick orange sauce for Abacha, Nkwobi, and Isi Ewu), shorten the boiling time of tough dry beans, and thicken vegetable soups like Ewedu and Okro. Use potash sparingly (a pea-sized piece) as excessive intake can irritate the digestive tract. Read on for the chemistry, benefits, and traditional cooking methods of potash.
The Chemical Magic of Potash Emulsification
In traditional Nigerian cuisine, oil and water are frequently combined to create thick, creamy sauces. Under normal circumstances, oil and water repel each other. When potash is dissolved in water and stirred into warm palm oil, the alkaline salts in the potash trigger saponification—a mild soap-making reaction. The fatty acids in the palm oil are neutralized, transforming the clear red oil into a thick, opaque, yellow-orange cream. This emulsion holds spices, peppers, and meats beautifully, defining the texture of Enugu Abacha and Nkwobi.
Shortening Bean Cooking Times
Dry beans contain tough hemicellulose cell walls that require long boiling times to soften. Adding a tiny piece of Akanwu to the boiling water increases the pH, making the water slightly alkaline. This chemical environment breaks down the hemicellulose fiber network much faster, reducing cooking times by up to 50% and saving gas or electricity.
Buy premium Akanwu Potash (Kaun) online from our spices catalog. Read about the chemical composition of potash minerals on Wikipedia’s Potash Article.