Most of the time when I purchase blue potatoes they have blue flesh. However, once in a while I get some that have a creamy golden flesh. Looking at them I had no idea they would be different.
I know there are many varieties but usually in the grocery store we are not provided that information. I've tried asking the produce clerks but essentially they are stockers with very little knowledge about produce.
Is there a way you can tell without opening a bag or damaging a potato to get a look?