2clicker, I mean no disrespect by the this comment, yes do your research on solvents. The answer is in the power of what Solent you use and how easy it can be removed.
As far as I am concerned Ethenol extraction always tastes like Ethenol extraction. BHO evaporates nearly clean depending on the process.
As far as I am concerned Ethenol extraction always tastes like Ethenol extraction. BHO evaporates nearly clean depending on the process.