I was pretty disappointed to learn that hexane is still commonly used for solvent extraction of vegetable oil. Residual levels are generally < 50 ppb, but hexan

I was pretty disappointed to learn that hexane is still commonly used for solvent extraction of vegetable oil. Residual levels are generally < 50 ppb, but hexane metabolites can covalently bond to biomolecules [1] and take years to be removed [2]. There are tons of safer solvents to choose from. 1: https://chemistry-europe.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/cbic.201700210 https://chemistry-europe.onlinelibrary.wiley.com/doi/pdfdire... 2: https://onlinelibrary.wiley.com/doi/pdf/10.1111/jns.12261 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jns.12261