Break the large wild boar bones down to a size that fits in the pot and place them in your largest pot. Submerge them in water and add salt to reach a salt concentration similar to seawater, then let sit for about 30 minutes to draw out the blood. Once the blood and impurities float to the surface, rinse them away, then wash several more times with water to clean the bones.
Wild boar bones to tasteSalt to tasteWater as needed