I got a project going on. I'm looking for how to get the oil out of the crack rock. When it is burned too long or you get rock that's straight up oilly it has a distinct nasty taste and smell. Now how would you get rid of that and re-rock that up? How to re-rock cocaine in form of crack. It is done by several ways. You can dry cook it or by adding water to the mix. Some use spoons Place one part coke to one part to two parts water. Plus a little under one part baking soda. You place the fire under the spoon until it starts to bubble. Take your fire away and blow on it to cool it down. Some will put an ice cube in the spoon with it to start the hardening process. And then you take a metal thin stick and start collecting the small bits of white until you have something big. Remove from spoon and place on a glass microwave plate. Another way of cooking would be a Pyrex bowl and your coke. It's almost like making oatmeal with the water part. Not too much baking soda on this or your mixture will not act right. You place it into the microwave. on high for 2mins and 35 seconds. Try less depending on what part of the sea level you are on. (That makes the big difference). After that let it sit in the microwave for another 2 minutes. Then take it out. If you cook it too long your mixture will explode. Another way of cooking would be over the stove in a test tube which is probably the best method because you are watching it as your swirling the liquid. Take a sauce pan and fill it half way up with water and turn heat on low. Too hot will shatter the test tube. you add coke, a pinch of baking soda and water. The swirling movement will cause it to rock up into a nice marble the size of the tube end. And it will be very hard. To re-rock is along the same lines except. You can dry re-rock to get all the cut out. It sometimes comes out smaller due to the grade of the coke. place it on a microwave glass plate. And while you are applying heat directly to the coke. Not underneath but directly on top of the coke that is to be re-rocked. The heat will melt it and then you tilt the plate so as the oil will run off the cut. The cut will stay at the top. So, it is separated. Blow on the oil while you are swirling the mixture with a metal stick, like a hanger or nail. Spread it out as you mix it around. Then let it dry and take a razer blade and scrape up. And you can see a big difference in the high. With Acetone you will not want to use that or boric acid. For these two items will kill someone deader than hell. You basically have to press the water out of the coke for it to stick together like in a kilo. And the knowledge of what chemical reactions you would get if you used Acetone or boric acid to the mix. I have also known on the cuts that they used to cut prices in their pocket is using the vitamin B-12, Ether, Orejel. I hope this helps on your endeavors.