How do you calibrate brew pressure when you have flow control? Where should the flow control knob be set for an initial calibration? Great videos, keep it coming!
Hi Todd, I will keep the videos coming and thanks for the question. You'll get standard flow (like the machine did not have FC) rate on ECM and Profitec machines with the valve open 1.25 turn from closed/no flow position. A couple of things... If using a back flush disc (blind filter basekt) so long as the valve is open it doesn't really matter were it is set when adjusting brew pressure. If the valve is barely open it will take longer to reach full pressure but it will get there. Persoanlly, I'd have the valve open at least 1 turn just so pressure changes happen faster. But here's a cool trick! If you have a flow control device you don't need to use a back flush at all. Just close the flow control completely so there no flow from the group and adjust your brew pressure. It's basically the same as having the backflush disc in place. Marc
Hi Pablo, Thanks for the love! The valves on the 600 and 700 are the same. Just turned 90 degrees on 600. The steam and hot water wands are different but would be interchangeable. The slight problem is the valves have a set screw in the back which goes through the face of the machine so if turning the valves you'd have to drill out a hole for the set screw. Also might run into clearance issues if mounting longer wands on the 600. Marc
Hi. I’m just setting up my pro 600 as a coffee novice and your videos are very helpful, so thank you. I note with your model the pressure range was 7-14 bar but the lowest mine will go is just over 9 bar (max 14bar). Is my narrower range likely to cause me a problem? Or suggesting there is a fault? (Mine has flow control which I have open 1 1/4 turns). Thanks.
Hey MP, Thanks for the comment and question. Not sure why you have a lower range. Perhaps the spring in your OPV is a little stiffer. It's not a problem and we recommend setting static pressure to 10 bar which is within your current range of adjustment.
Hello Mr.Mark. How are you? My profitec Pro 600 shows a brew pressure at 4 bars. I got it new 2 days back. When I use back flush basket, the gauge shows 9 bar pressure. But upon brewing, it shows max 4 bars. Could you help me in finding the issue or any tip or something? Thank you 😊
Hi NN, I'm doing well. If reading 9 bar with back flush disc and 4 bar during an extraction most likely your grind is too coarse so the coffee is not restricting the flow enough to cause the pressure to rise. There's a long shot chance there's some other issue but that's . You might do a flow test to rule out a water flow restriction somewhere. With the portafilter out of the machine turn the pump on and measure the amount of water dispensed from the group over 20 seconds. Unencumbered flow rate should equal 7-8 grams per second. So you should get ~140-160ml by volume (or 140-160 grams by weight) of water dispensed from the group in 20 seconds. If significantly below those numbers there may be a restriction or issue. If you continue to have issues and purchased the machine from us contact our tech support here: support.wholelattelove.com/hc/en-us Hope that helps! Marc
@@Wholelattelovepage Hello Mr.Mark. Thank you for your advice. I tried to measure the water from group head and got 104.6 grams of water in 20 seconds. So there is a restriction. I ground the beans at finer settings and got 5 bar pressure. I went on more finer and got 8 bars of pressure but the espresso took 50 secs to brew😁 I did not buy the machine from your good office as I am in another part of the world. So, what are our possibilities? Should i visit the seller shop or is it easy to fix ?
Hi itz, If you've reached the minimum adjustment that's as far as you can go. You could try going as low as you can then remove the portafilter and run the pump briefly without it in place to make sure you've bled all pressure and see what the static pressure reads when you reattach the blind filter and run the pump. There is a one way valve with the brew system hydraulics which can retain pressure. My guess is that will not change anything but worth a try. Other than that, know that if the machine gauge is reading 8 bar you're likely getting about 7 bar in the portafilter during an actual extraction. That's due to pressure loss between measurement point within the machine and the loss of pressure from from espresso exiting the PF. If you want lower pressure than possible with the OPV adjustment you might consider adding flow control (if machine is not already equipped with it). Flow control allows you to adjust flow rate and pressure within the group and includes a pressure gauge which mounts to the group which shows true brewing pressure during an extraction.
@Whole Latte Love for example, my pro 600 PID shows 90 degrees Celsius. Therefore, the grouphead will have a water temp 15 degrees less? What is the ideal water temp range out of the grouphead for medium roast beans?
Why my original screen bar wont move more after 9 bar? And the mini screen of bar of fc devices does go more than 10bar, o I have the flow control devices installed.
