Almond flour is made from whole, raw, blanched, skinless almonds that have been finely ground and then sifted to create a very fine flour. Almond meal is simply ground almonds, usually with the almond skins intact (but not always) and it has a more coarse texture. Since almond meal is more coarse, it's heavier than almond flour and will add more texture and almond flavour to recipes. Almond flour and almond meal are sometimes interchangeable in recipes, but in some cases, they are not. This is why it's best to use the type the recipe is calling for or the texture of what you are making may not turn out as intended.