Cottonseed Oil - Ar-R?

[Olddawg71]

Not sure what any other answer there is bro...I would always filter my oils, no matter if they claimed sterility or not. Just follow the instructions Bonaparte gave ya on filtering and you will be GTG..

[Far from massive]

A .22um filter is needed for sterility, a .45 will get out most crap but is not of an adequately small pore size to ensure sterility. As far as what to use if you are doing much filtering at all look into a whatman zap-cap and a handheld vacuum pump as syringe filters are a real pain in the ass.