Potash soda is an essential ingredient in cooking, used for many useful applications. It helps release the flavor of vegetables and aids in preserving the vibrant green color during boiling. By adding a teaspoon to boiling water, you can tenderize meat by leaving it in the refrigerator for 2-3 hours. It also reduces the acidity of tomatoes with a pinch during cooking. In sweets, when mixed with flour, it enhances the fluffy texture of the dough. You can also prepare your own baking soda by adding 1 teaspoon of soda to 1 glass of water.