I bought a few dutch ovens before they started seasoning them at the factory, and I've tried a few ways to do it. You're right about that preservative being tough to take off. Seems like you can never get it ALL off. The important part though, is the cooking surfaces. That handle will blacken up with use by itself eventually. One way that worked for me once (and I only tried it once) was to put a DO in the dishwasher, even though it says not to do it. It came out with a lot of surface rust that scrubbing with a brush and soap and water took care of. Preservative gone! Then I greased it up inside and out and seasoned it in my kitchen oven. It came out kind of brownish, but the directions say that's what the first pass on seasoning is supposed to look like. Eventually, after use, the pot blackened up fine and is now one of my best. One of my other successful tries was on a 12 incher, lid and all. After scrubbing the hell out of oven and lid inside and out with a brush and detergent, I then fired up a charcoal grille--a big one with a cover--and heated the thing for about an hour. After it cooled down, I swabbed it with melted crisco, inside and out, put the DO and lid back in the grille, with thecover down, and baked it for a couple of hours until the charcoal and some small hardwood chunks burned away. Success--and the house didn't stink like it does after you try seasoning in the oven of the kitchen stove. Eventually, after the first seasoning and some use, the pots get blacker and blacker. Your grand-daughter will have a properly seasoned pot to last a lifetime after your own lifetime passes. Factory seasoning has proved a real chore-saver for those new to the dutch oven game.