This is the part of Platinum series of inks that encourages you to try your hand at mixing inks. Of course you can just use the ink as it is. Brown isn't uually my colour unless they are dark or have some kind of special properties. However, Platinum Mix Free Earth Brown isn't my cup of tea. It has more red/orange tones to it. It is a shade too light for my tarste. The ink is well behaved and has shading more obvious with wider nib sizes but it doesn't do it for me.