Where to buy Food Grade Butane

Fadedawg

Well-Known Member
I've been using Puretane which is 99.9998% n-butane and 0.0002% Isobutane and put into food-grade plastic lined cans. Is that food grade butane?? :P See here: https://www.puretane.us/
Or so they claim, but when we vacuum distilled two cases, we definitely were left with MO.

After distillation, it made a fine extraction.

Here is a link comparing the level of residual molecules longer than C-4, of the different brands.
 
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