All you need to do is go to their website or app. Pick your home store. Then in the search bar type what you need. A screen will come up with two options on top... Your Walmart store or online. Choose your Walmart store and it'll show you the item and the place it can be found in the store if they have it. I've done it before, even for something more rare, ie edible cookie by the cookie dough cafe. I found it and where it was and how much before i even went to the store. Good luck!
I never heard of rossted flour.
Best to call them to check, but probably could find it online.
Hopefully they have.
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