Hello! I built a custom lichtenberg kit and attempted the burn. The solution I used was water and baking soda on 10ft Cedar planks. The burns came out great, but because I used a brush for the water and baking soda often to help make a path for the burn, the ash from the burns darkened the wood in different places and it looks splotchy. If I sand it, it damages the burn design. Any idea for restoring the Cedar to its natural red look without sanding/destroying the lichtenberg burn design??