What kind of plastic is (really) safe to store vegetable oil? Storing colza or olive oil in a plastic bottle might be risky since the oil can leach out phthalates and BPA (and others molecules?). 

Some manufacturers sell "phthalates and BPA free bottles", but are they safe to store oil? 

What kind of plastic would you use to store oil?
If you are concerned, I would suggest that high-density poly ethylene (HDPE) or poly propylene (PP) to be better options. HDPE is a heavy duty plastic resistant to most chemicals and physical deformation- it is often used for household products including bleach, detergent etc, but is also commonly used for milk bottles and the like.