oil isnt important as long as its filtered in the process.
once again use BA if you like. it does not kill bacteria. one guy posted to let pellets sit over night to insure sterility. I have no idea where he got that from but he couldnt tell me when i asked. I only use BA as a solvent and preservative, not for sterility. if BA was the magic potion everone thought it was, all you would have to do is add oil and ba and not filter or bake. unfortunatetly this is the real world and juice is as close to a magic potion as we gonna get. BA and BB are wonderful solvents and they have thier place in todays home labs. you gius study this stuff out and dont take my word for it. thats why so many have bad info now from listening to other home chemists who have not cracked a book. you guys be safe.
and one more time: i have never had a bac infection from doing home made gear but have had a couple from mex/europe gear which as we all no is loaded with BA. that speaks for itself.