The cambium layer the fibrous glue that connects the bark to the wood can add depth and character to the edge if you leave it.
Clean up live edge wood.
The first thing to do is to begin sanding to a smooth touch using 120 grit paper.
Work your way along the edge of the slab.
Scrape the fibers off with a nylon or wire brush.
If you work across it you may gouge the surface and leave marks.
It won t come loose later scraping away that layer creates a slippery smooth edge with more rounded features.
Begin by removing a 6 8 section of bark starting at an end.
This sanding will reveal any checks that should be addressed prior to doing anything else.
Now if you re planning on finishing your wood with something other than a clear coat apply some of that finish to the side that won t be visible.
There are lots of methods for removing bark and smoothing the edge including using a wire brush abrasive pads and balls and the good old disk sander.