Risks of using teflon tubing in oxygen refilling

[dozse7en]

Considering an oxygen refilling plant, where liquid oxygen passes through a vaporizer, and then passes through a compressor to be packed in 47 liter gas cylinders at 1800 psi. We were adviced to use stainless braided, teflon coated tube rather than copper tubes for the reason that oxygen may have a reaction to the teflon coat. should we use copper tubing or the teflon coated?
Thank you
~doz