thanks for that information, now i am totally confused because that is the first time i have heard such settings. The common time settings on youtube and in the forums were 180c and 180-200 sec complete pressing time or 60-70 seconds after the mug reached 180-200C. 200 seconds after the mug reached 180C is like 5-6 minutes complete pressing time, are you sure? I get burning marks and slightly brownish blacks when i go for 70 seconds after the mug reached 180C which converts to 257 seconds in total pressing time