02-04-2010, 07:07 PM
have used organic material for years and never had a problem with it , but the first thing i do with anything from out side dirt , sand , twigs or leaves is a 2 or 3 hr bake at 250 to 300deg in the oven , kills and thing that might be hiding in it and any seeds or spore in it. then i pass a large magenet to pick out anything that a motor magnet would attract.
jim
jim