My twelve years experience within the field of TV liquid special effects has helped me to develop what I believe to be the most accurate CG representation of this very common liquid effect. Please check out the preview movie to see if you agree. It is most suited to mid to high viscosity liquid simulation and has been used successfully to represent chocolate, caramel and milk. It comes with a user guide Word document which explains how to easily adjust things like the rotation speed, whirl complexity and the glossy/matt appearance of the liquid surface. The mesh resolution is easily scalable to suit your projects needs.