[garyiskidding]

Yes i think shaking may induce good dissolution and mixing and may be higher intensity than mixing using spoon or fork.

My thought was on the lines of non turbulent mixing with spoon or fork, entirely on the basis of mixing efficiency.

[giantg2]

The whole point of the spoon or fork is to create turbulence. In a clear container, you can even see the turbulence created as the solute dissolves creating mirage (portions of the solution have different densities, refracting light differently), provided you stir slowly enough see it happening.