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This rule is applied to smaller runs too. Purge time depends on thickness of the slab rather than amount by weight.

I think he's referring to spraying solvent directly into silicone, it's not safe silicone is not rated for chemical solvents. Stick to Pyrex. If you have used enough heat without vacuum the oil should be free of butane for the most part. If it doesn't react when under full vacuum that'll...

Keeping your temperatures low and constant is the key to a proper purge. A pancake griddle is not the best hot plate for direct heat to the chamber as it needs to keep reheating itself. Unless your hot plate can hold a steady low temp, try using a buffer to keep the chamber off the direct heat...

Bho is only as dangerous as you make it. The health risks mentioned in the article above are related to acute exposure to gaseous fumes Have you ever heard of somebody dropping dead from a hit of bho? I haven't. This thread is pointless and doesn't raise anything but more false speculation...

The claim that a concentrate has to have lipids in it to be a crumble is completely false. Dewaxing is just removing a harmless impurity. Crumble can be achieved just as easily with dewaxed oil as shatter can be with unaltered oil.

You answered your own question, you need to do some research! All the misinformation out there that says butane is poisonous are from uneducated sources.

In a proper extraction no butane gas is left behind. If you are concerned about residuals, residual butane is the wrong place to look. Butane is a hydrocarbon distilled from petroleum, and in most cases butane contains a small amount of heavier petroleum distillates. However, if the solvent is...

According to Hovensa MSDS for Butane: Butane is considered to be non-toxic by inhalation. Inhalation of concentrations of about 10,000 ppm may cause central nervous system depression such as dizziness, drowsiness, headache, and similar narcotic symptoms, but no long-term effects. If you came...

coffee filters are a good idea, I always stuff one in as a diffuser so the butane showers evenly.

It could be h20 that caused that. It's hard to tell when It could have happened, but my best guess is it could be from condensation when you were chilling the butane. When I am chilling the solution I keep the beaker on a block of dry ice rather than half buried, it helps to keep the frost from...

^ that stuff is glowing! @kingtut106 looks like it got a lil little sugary, what temp did you purge at?

Thanks for the link to the Hitman MSDS. Now I have an abundance lighter refills :p

Second run with butane will pull more impurities than desirables. If you truly want to pull more thc from spent material do a ethanol wash, winterize, and use the oil for edibles. Ethanol wash still won't yield much but it's worth it if you have lots of garbage material. The only people I know...

A few more newer brands to add: Colibri premium Spark 7x Hitman 7x Whip it premium* 400ml can I have used them all and had better results with those than with the infamous Newport . There isn't an MSDS available for each specific brand but all are sure to have no sulfur. Colibri premium is...

I got into dewaxing first with the dual solvent winterization method, I quickly made the switch to a single solvent using only butane. Ethanol is more volatile than the monoterpines that are soluble in butane so when mixing the two solvents you loose some of the lighter terpines. Now I use...