Been pressing at 180 topping out at 8 ton. 90-120 second presses. 10 grams in a 2x4 120 micron nylon filter bag. I stop at 2 ton for 60 sec 6 ton for 30 sec and finish at 8 ton. Every now and then I will press at 160 the rosin is dry like a thin sheet of shale by time it's off the press so brittle it's almost hard to collect.