Buy 100% pure sesame oil at your local grocer. Place aluminum foil in muffin tray and then pour desired amount in cups. Place in the oven at around 275-300 degrees for around 20-30 minutes. Cool back down in refrigerator and then use for experimentation. As long as handled properly you will then have sterile sesame oil. Furthermore after project is completed you can run through sterile filter and also reheat and cool product after is is in vial when completed!