Many different shortcuts exist for cooks in the pantry. Self-rising flour is one of these shortcuts that has flour, salt and baking soda. If you have a recipe that calls for all-purpose flour and also calls for salt and baking soda, you can substitute the self-rising flour for all-purpose flour in many cases. However, in some cases, your final product might rise and then fall if you have too much baking soda because of the self-rising flour. In recipes where you don't add enough baking soda in the conversion, the dish might not rise enough.
Determine the conversion ratios. One cup of self-rising flour is the same as 1 cup of all-purpose flour, 1/8 tsp. of salt and 1 1/4 tsp. of baking soda.
Look at what the recipe calls for. Assume you are baking a cake calling for 2 cups of all-purpose flour with 2 tsp. of baking soda and 1 tsp. of salt.
Calculate how much salt you need to add. The 2 cups of self-rising flour have approximately 1/4 tsp. of salt. You will only need to add 3/4 tsp. to your recipe now.
Calculate how much baking soda you need to add. Two cups of self-rising flour contain approximately 2 1/2 tsp. of baking soda. You have more baking soda than you need. This means that the baked product might rise too high; you can't sift out the baking soda, so you will have to accept this as part of the substitution result.
With more than 15 years of professional writing experience, Kimberlee finds it fun to take technical mumbo-jumbo and make it fun! Her first career was in financial services and insurance.
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