Smoking - Why does some crack catch fire?

[jdrug]

Though most decent rock just vaporizes into the screen, occasionally swim finds some rock tends to catch fire and create a flame at the end of the pipe (assuming a glass tube and screen). What causes some to catch fire? Is it a cut of some kind? Something in the preparation process (too much baking soda, etc)? Possibly just wet?

...or is this just another case of "it could be anything"?

[adzket]

swim finds this normally happens with crack that has been made with amonia and not bicarb. and the resulting crack has offen not been rewashed to get rid of any exsess amonia. if swiyou find there crack is ever slightly yellow it more than likely has amonia innit.

[jdrug]

Thanks adzket, but the scenario described in the original post is referring to rock that has definitely been cooked with baking soda and it is pure white.

Any other ideas as to why it would flame up? Maybe too much bicarbonate?

Is it a sign of bad stuff maybe?

[jdrug]

Perhaps there are other reasons as well, but one reason with rock that has been cooked with sodium bicarbonate appears to be too much bicarbonate or cut -- simple purification to remove some of the baking soda and cuts results in a smaller rock, but it no longer catches fire.

See also: http://www.drugs-forum.com/forum/showthread.php?t=23706

[klaatu]

Originally Posted by jdrug

Though most decent rock just vaporizes into the screen, occasionally swim finds some rock tends to catch fire and create a flame at the end of the pipe

I asked my friend Swim about this and he said that he too had seen this happen. He's says he finds it a very distressing sight - it is, after all, going to waste

He beleives it is more likely to happen when there isn't enough airflow into the pipe - maube because of a partly blocked screeen or just not using enough lung power.

Klaatu

[jdrug]

Originally Posted by klaatu

He beleives it is more likely to happen when there isn't enough airflow into the pipe - maube because of a partly blocked screeen or just not using enough lung power.

That may be in some cases, but swim has noticed that good stuff will melt completely into the screen when pre-melting and heavily cut stuff will leave residue on the glass (some stuff doesn't melt into the screen) -- swim has found that this residue that is left on the glass often catches fire.