Almond flour is the same thing as almond meal. When you cook with it (like putting it in a meatloaf) you can use whatever you want - any brand, blanched or unblanched, but if you want to bake with it.... that's a whole different story.
Baking With Almond Flour
Many Paleo cookbooks or websites I have seen recommend specific almond flour when you bake their goodies. This is because texture matters.
If you bake with Trader Joe's almond meal, for example, your Cinnamon Swirl Muffins will have a texture like cornbread. Bob's Red Meal brand gives a smoother texture, but it's still not nearly as good as the best almond flour I've found yet for baking: Blanched Almond Flour from HoneyVilleGrain.com. If you make your Cinnamon Swirl Muffins with this flour they will honestly feel like cake in your mouth. You like cake? You want to upgrade your almond flour.
Yes, it costs more.
Yes, it's worth it.
You can get a 5 lb. bag or a 25 lb. bag. You can buy in bulk and save on shipping costs and store it in the freezer. Or get it on Amazon.com for free shipping if you have Prime. Just storing it in a cool, dry place it will last for 3-6 months.
So if you are into Paleo baking, I recommend you experiment with your brand of almond flour. The finer the better for baking!
I like the easy Paleo stuff.