[Sca-cooks] powdered sugar vs confectioner's sugar (memories)

[Arianwen ferch Arthur]

I remember seeing the pink vs the blue boxes of powdered sugar  and wondering the difference but never asking, then I went to work in Australia and discovered there that the pink box was pure sugar and the blue boxes had corn starch added (to help with caking?)

I went back to work in US and voila, blue boxes only, yes with corn starch listed on the ingredients box  

(C&H  was pink and blue, I know Spreckles but remember it as always in yellow and my grandmother scathingly insisted on C&H as it was pure cane sugar not beet sugar)

and I do remember reading that if you didn't have powdered sugar you 
could put it in the blender, but the one time mom had me try that I don't think she was too pleased with the result especially for the effort involved

Other than reading the cornstarch on the labesl these are memories and interpretations of things said, nothing I have researched or read about in passing, but I am curious what others know/remember


Arianwen ferch Arthur

"Outside of a dog a book is man's best friend. And inside of a dog it's too dark to read." G. Marx