Quote Originally Posted by rockcopper
My buddy just made some awesome BHO. He used galvanized pipe, my question, is this a safe material for the pipe or should he be using stainless steel? Love the high and taste of the oil, just dont want some metal poisoning. Any feed back is welcome
Zinc is a poor choice in butane and essential oils.

Copper is a better one, if kept clean.

300 series stainless or borosilicate are best.

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BHO Extraction « Skunk Pharm Research LLC