To restore a fresh new look to older logs that have been stained numerous times, the existing stain will need to be removed. Common methods for such a task are either to chemically strip or mechanically remove the coating.
The quickest and cleanest process is to have the stain removed using a modified method of sand blasting called corncob blasting. This process substitutes finely ground corncobs instead of sand for stripping the log surface. Additionally, a corncob blasted surface, if properly done, provides a surface profile that will "hold" a wood stain or coating better than any other wood surface preparation.