Any oil can be added to flour and the flour will absorb it.
flour...if your making a roux
There seems to be some misunderstanding. Pillsbury - and other companies - produce chocolate cake mixes, along with chocolate brownie mixes, cookie mixes, and so forth. These mixes include ordinary all purpose or cake flour combined with sugar, cocoa and other ingredients. You use the mix by adding other things, usually eggs, oil or butter, water or milk according to the directions on the package. > But there is not a commercial product that is "chocolate cake flour." Flour is simply flour; cake flour has less gluten (a protein) than all-purpose or bread flour. You need to add cocoa or baking chocolate to the cake flour in order to make chocolate cake.
No. Plain flour does not contain yeast. Some flour mixes do.
Yes. Cake mixes have flour and old flour can get "weavells" not sure if spelling correct. These are microscopic tiny black/brown bugs and can be seen in white flour as greyish specs. Ugh!
No. The flour stays chemically the same. Sifting mixes air with the flour and breaks up lumps.
cake and cookie mixes
The concept of commercial mixes first developed when millers began adding a leavening agent and salt to flour products to make "self-rising" formulations
NAICS Code 311822 is for Flour Mixes and Dough Manufacturing from Purchased Flour
No. Baking mixes have other ingredients in them.
It mixes liquid and/or solid food ingredients, such as flour and milk.
This industry classification comprises establishments primarily involved in manufacturing prepared mixes and dough's from purchased flours.
The Russell Spruance Company of McDonald, PA, made Spruance flour and mixes; it is no longer in business.