Potato Flour VS Potato flakes

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Interchangeable?

 

Potato flour is "Ground from whole peeled and dehydrated russet potatoes, our premium quality Potato Flour is perfect for thickening sauces, soups and gravies. Potato Flour works wonderfully in many baked goods and is a healthy option for gluten-free and allergy-free cooking. Potatoes are a natural source of fiber, B vitamins and iron.

Potato Flour attracts and holds water, producing moist yeast bread with a good shelf life. A teaspoon or so added to your baked goods lends a moist crumb, so it is especially useful in gluten free baking. Potato flour also works great in pancake and waffle recipes. A flavorful recipe for potato soup is on the label."

This is taken from its product description. Sorry if it sounds like I am advertising for them.

I am playing with flavors and want to try potato flour.  Someone purchased flakes thinking that it is what I wanted.  Do I need to pulverize them in a blender or does it matter?

 

Just weigh it out as the flour is more compact than the flakes.