What is your recipe for trne? Depending on what your ratios are I could see maybe needing higher heat but a lower heat with longer exposure would probably achieve the same results. I use 40/5/3 bb/gu/ba and lower heat, probably 190/210f for 50mg/ml.I can not speak on ppl that brew at 500. I do not know their process but I do know they do that and cook for a successful lab on another forum. I cook my tren a n e at 225 and my tren no ester at 305. So as I said earlier I do use temps up to 300 for a tren product
Do you have a magnetic stirring hotplate?
I've seen pressure cause issues when there is no room to breath for the oil.Because the stopper can disintegrate into the oils