Granulated garlic and powdered garlic is both types of ground dehydrated garlic.
Granulated garlic, technically, the accurate size is 40-60mesh in EU standard and 40-80mesh in US standard.
Meshes a measurement of particle size often used in determining the particle size distribution of granular material.The larger the mesh number, the smaller the granular size So a clove of granulated garlic sizing from 25-0.42mm or 0.177-0.42mm and holds a texture close to cornmeal.
Well in powered garlic, the most common size is 100-120mesh, converted to the millimeter, it is 0.125-0.15mm. In some cases, garlic powder can be 80-100mesh, a texture resemble cereal flour; And in other cases for a specific use, dehydrated garlic powder can be very tiny particles of 120-150mesh.
Sum up, granulated garlic is not the same as dried garlic powder. In a recipe that calls for 1 clove of fresh garlic, be sure to spoon out less amount garlic powder to granules. And in terms of flavor, there isn’t any difference between the two.