Review on PTFE Zero Transfer Sheets Non Stick by Brian Page

I used to use parchment paper to store my concentrates, but over time I felt that some of the flavor was lost. So I bought PTFE sheets to try and they work great! I did some research, PTFE is cheaper than FEP but works similarly, the only downside of PTFE is its transparency. (PTFE is roughly translucent while FEP is transparent). Well, one thing I can say for sure, I will definitely not go back to Parchment. Many Thanks.