How to Avoid Making Mistakes in Process of Solventless Rosin Extraction

I cut the PTFE paper too small so goo got on the plates. Not too much but enough, It was hard to photo the rosin on the plates as the camera flash kept bleaching it out. I used an alcohol wipe to clean it all off. I used too much pressure, too quickly and blew the filter bag out. The rosin was very brittle, when collecting I could see small bits pinging off all over the place. I think I got most of it but some specks got away.