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I can not produce the good espresso from Giotto as EM6910...

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  • #31
    Re: I can not produce the good espresso from Giotto as EM6910...

    Originally posted by 222E2D282F36242F410 link=1327274445/19#19 date=1327738211
    I start to adjust the grinder again to a bit corse and more amount.
    I also follow the cooling flushing progress for E61 machines protocol.
    The cup start t taste less bitter, but still quite bitter than same blend from EM6910.
    Colin, why did you go coarser on the grind? It seemed all of the suggestions were suggesting a finer grind.

    Comparing the photo of your pour, to what I see from my Breville (with naked PF), the pour looks too fast. Mine are much darker, and look more syrupy. Id be grinding slightly finer and not make any other adjustments yet (as always, adjust one variable at a time when troubleshooting).

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    • #32
      Re: I can not produce the good espresso from Giotto as EM6910...

      Hi Colin, since you had a hard time understanding what I did with the milk, heres a different angle showing the milk being textured from the top.

      Not much different to ITC since were both using KKs method. 

      [media]http://www.youtube.com/watch?v=cHzJ_9lKQtw
      [/media]

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      • #33
        Re: I can not produce the good espresso from Giotto as EM6910...

        Thanks "InTheCup" and Saoye,
        I will carefully watch the video clip for some detail.

        @MrJack,
        YES. I have try different grinding settings, but when I go corse, the bitter reduce a bit but lose flavor too due to brewing is too fast.

        I brought the machine to the local service centre which is also local Giotto dealer.
        They rang me back yesterday saying they feel no major problem after they check it.
        I am not sure how they check it, but during the conversation we decide I will go to their shop to make the espresso with my Giotto to see where is the problem.

        I feel a bit scary...being a home barista and showing a real barista how I make the coffee is huge different.

        I hope I wont embarrass myself this afternoon.

        At least good news is there is no major issue with this machine...

        Colin

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        • #34
          Re: I can not produce the good espresso from Giotto as EM6910...

          Hi Colin,

          sorry if my previous post sounded abrubt - Im not intending to be! I should be more patient

          The only thing I can say about the local repairer is this: do they even know about thermosyphon temperature & flow, boiler pressure, boiler level, OPV pressure and how they all affect each other, etc or do they just "fix" broken bits?! Just because they are a Giotto dealer or espresso machine servicer doesnt mean they understand as much as (for example) Chris from Talk Coffee, who has measured and tested all these variables.

          So when they say the machine is working, they could just mean "there are no leaks and hot water comes out the group". Having said that they could also be experts, I really dont know, but its worth thinking about.

          I think your barista skills wont be an embarrassment!

          Hope you get to the bottom of it!

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          • #35
            Re: I can not produce the good espresso from Giotto as EM6910...

            Get them (the professionals!) to make you a good coffee on your equipment.

            Greg

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            • #36
              Re: I can not produce the good espresso from Giotto as EM6910...

              Thanks iaindb and Greg again for the advice.

              I will ask them for the demonstration and detail.
              I totally agree I was worried how good they are, however, live in a semi-remote area, they are my last help.
              I wish I am live somewhere close to Chris (Talk_Coffee) since the thermostability modification sounds exciting.

              Few mins ago, I almost pack up my stuff and on the way to the coffee shop and then got the phone call we have to postpone the meeting due to the barista forgot he has a day off this afternoon. (He left a voice msg but my dodgy optus did not record anything...)

              Another quick chat with Jonathan (who seems like to be the head of barista over there), he said the boiler pressure is at 1.1 bar and its good (duh..)
              Brewing pressure (group head pressure) is 9 bar (which I thought this machine is 11 bar according to most of the users post).

              He suggested as others mentioned about the problem may due to grinder and bean.
              Water might also be a problem since I did the descaling as non-technician (he did not say the exact same words, but similar meaning that I might screw up the machine when I descale it).

              Therefore, tomorrow we will meet up (again), and I will bring my bean but not grinder.
              To see what happen to my machine or my skill or my palate in the end...
              Fingers cross...

              @iandb, no worries, I understand people here is very keen and helpful.
              The writing (sentence) sometimes did not sounds that way, but I believe people here not come to judge others.
              I am happy to get any different response than no-one reply my post.

              So far all the post (since the first one when I got this Giotto) are very informative and helpful.
              Sometimes its me did not write down the clear information/detail (might due to its my second language).

              Cheers
              Colin

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              • #37
                Re: I can not produce the good espresso from Giotto as EM6910...

                Originally posted by 505C5F5A5D44565D330 link=1327274445/35#35 date=1328073102
                Few mins ago, I almost pack up my stuff and on the way to the coffee shop and then got the phone call we have to postpone the meeting due to the barista forgot he has a day off this afternoon. (He left a voice msg but my dodgy optus did not record anything...)
                Hang in there Colin. At least you get to learn about the concept of Queensland Time.

                And dont sweat about your meeting with the barista guy. Seriously, whats the worst that can happen? Not much. Whats the potential upside? You could pick up some useful tips. Much less stressful than completing a thesis (done that one a few times myself).

                BOSW

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                • #38
                  Re: I can not produce the good espresso from Giotto as EM6910...

                  Hi colin,

                  Since you cant take you grinder, perhaps you could take a sample of the grinds with you? At least you can then make a visual comparison with the ones you use there for the demonstration.

                  Comment


                  • #39
                    Re: I can not produce the good espresso from Giotto as EM6910...

                    Morning Colin, with all of the helpful good natured advice you have been given here and in another forum where you have virtually duplicated everything you have posted here you really should be making some progress, if your still having problems I suggest paying someone for some professional help should be your next logical step.

                    Comment


                    • #40
                      Re: I can not produce the good espresso from Giotto as EM6910...

                      Originally posted by 172B223A2F4E0 link=1327274445/38#38 date=1328143054
                      Morning Colin, with all of the helpful good natured advice you have been given here and in another forum where you have virtually duplicated everything you have posted here you really should be making some progress, if your still having problems I suggest paying someone for some professional help should be your next logical step.
                      Good at least that the cross-posting is elsewhere. Might be worth cross-posting our responses as well! ;D

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                      • #41
                        Re: I can not produce the good espresso from Giotto as EM6910...

                        I apology if my cross-post against any forum policy.
                        I was just so dispirited and looking for help.

                        As far as I know not too many member cross here and another forum.
                        Even they are, they did not response at the same time or even not response at all.
                        At least, AM who use to response a lot in my first EM6910 is not here that often.

                        I do agree with Chris, probably there will be some stubborn people like me in the future try to maintain/fix the machine themselves, but end up in the dead end like me.
                        These post will be very valuable for them to read to see my tragedy as a negative example.

                        Hoever, if those future candidate know how to use google might also find the different suggestion and advice from both forum.
                        Of coures, at some point, CS has far more member than others, most of these member may just come here to buy/sell the 2nd coffee stuff, or throw a help post then disappear.
                        There people who really contribute to this forum and guide the struggling newbie (ie me) may be only less than 1%.

                        Or some people are just sick of these deja vu post come out every now and then (I did do some search before I start a new help thread tho).

                        I believe these issue happens at every forum at every category.

                        I really appreciate people who was willing to spend the time to typing any reply post.
                        Even the content is more moralization than advice/suggestion.
                        I am still more than happy to see different peoples opinion about my mistake/ignorance.

                        I wish after 3pm this afternoon, once I got the meeting with local real barista.
                        I will get some tip or suggestion about my operation.

                        btw, I meant to upload my brewing video clip which I have recorded.
                        But need to cut some redundancy off, I did not have time to go through yet.

                        hope I will post my video very soon.

                        Colin

                        Comment


                        • #42
                          Re: I can not produce the good espresso from Giotto as EM6910...

                          Hi Colin,

                          I think its a big mistake not to take your grinder.

                          I am guessing one or a combination of dose technique, beans and grind setting. You will be without one very important element.

                          Chris

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                          • #43
                            Re: I can not produce the good espresso from Giotto as EM6910...

                            Originally posted by 586D6067534F636A6A69690C0 link=1327274445/41#41 date=1328146227
                            Hi Colin,

                            I think its a big mistake not to take your grinder.

                            I am guessing one or a combination of dose technique, beans and grind setting. You will be without one very important element.

                            Chris
                            Have to agree with Chris, not only important but crucial.

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                            • #44
                              Re: I can not produce the good espresso from Giotto as EM6910...

                              Thanks Chris and Jon,

                              Then I think I will bring my Isomac Professionale instead of Gino Rossi RR45 (too heavy).
                              Or maybe the reason they asked me "not" to bring my own entry level grinder is they are going to show/convince me to buy their expensive grinder....(just guessing~).

                              Colin

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                              • #45
                                Re: I can not produce the good espresso from Giotto as EM6910...

                                take the grinder you have been using

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