Heres some basic instructions i used to do it like this with my friends lol i remember what a crackhead i felt like taping a spoon to the edge of a counter in somebodys R.V. cause we want another hoot of hard stuff. good times. Get some cocaine and some baking soda in a 3:1 ratio I've also heard 4•1 ratio works well. Mix together and put in a spoon. Add enough water to cover it along with some extra I like to use a small dropper to drip the water onto it. Then Get a lighter and start heating it up. This will cause a chemical reaction that starts to convert the cocaine hcl into freebase. Do not let it get too hot keep moving the lighter around when you see it bubble a little bit take the lighter away, than put it back. You want to see a chemical reaction get started and to keep it going with just enough heat so it doesn't burn. It takes practice if you smell/see coke fumes its getting too hot if you feel you need to add water then drip a bit more in the solution .You should see an oily substance float to the top this is your freebase cocaine. Once it stops flotaing to the top remove the lighter and let the spoon sit for a minute or two.
You can let it sit and evaporate and let it get hard or if your fiending just can't wait I've heard of people that will Get a small knife and scrape the top layer off and put it on a piece of tin foil and smoke it. Aparently even when wet the water evaporates and it hits perfect. Once you think you got all the top layer and smoked it, just pour the left over water on the foil and smoke it up too don't wana waste any of your precious cocaine. Don't smoke the baking soda on the bottom obviously lol good luck happy smoking