When you turn on the blender, everything gets mixed up anyways, so why does it matter which order you fill it? That is not quite right – it should go: liquids first, then light ingredients, and then heavy ingredients last (for example: juice, spinach leaves, and then banana pieces and frozen ingredients). This way, everything will be well chopped and won’t splash to the lid when your blender is at full power. PS: With the personal blender, it is the exact opposite because it mixes everything “upside down.”