>The brew pressure gauge is essential on lever machines Not really :) - it will pull some spectacular short without it, once you get used to the feeling.
@@florinbaiduc Guess what, i got my Millennium pro and i am totally in love Without ppk, but installed a digital thermometer on the left of the head For light roasts, 90 Celsius works fine, and only 2" of passive preinfusion Every more preinfusion, makes the coffee sweet but less complex and with less crisp acidity
Great, great video! Just like a textbook explanation and is very very helpful not only for the beginner but also for many pros. The piston pressure gauge for the grouphead really tells how much force you need for reaching a 9 bar pressure. And surprisingly, I come out with a similar preference like you that I also prefer a slow ramp up and fast ramp down shot, giving a little time for preinfusion seems to make the shot sweeter. (By the way, I also feels that reaching a 9 bar might not be so necessary to make a good shot. I found it around 7 to 8 bar seems to be the sweet spot?) One other question I would like to know is most of the case when the boiler pressure is around 1, the grouphead usually is going to overheated but I saw your brewing temperature is about 87 celcius, which is nice. Are you using any special methods/technique/equipments to make this happens?
The different beans need different brew profile. Including pressure, temperature (both boiler and group head), and grind setting. For brew pressure, some bean may need only 6 bar but some need 9 bar. You have to find your sweet spot. The video was made when the room temperature was around 20C. And in the video, the thermometer sometimes didn't contact group head directly. It may make misread.
Great video! Just got a few questions. How many grams of coffee are you using? What size filter basket are you using? Are you doing a 2:1 ratio? How do you keep the bars so steady? Feels like you're using very fine grind, are you? Everything I do it my lever goes straight down with no to little effort. You have a lot of resistance hence you seem to be able to control the pressure better. Please help 🙏 Thank you
@@VelocHsuan I see that your group temperature thermometer has different readings between the shots. This will affect taste. I use a "portafilter thermometer" to test actual brew temperature. You can see it in many of my videos, for example here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OP3ZoMiKJJw.html
