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Rocket Giotto Plus V3 PID - Amazing

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  • barri
    replied
    A follow up on the scratches after reading this thread http://coffeesnobs.com.au/brewing-eq...stainless.html

    I bought some liquid reflection and rubbed it in in using my thumb (can't remember who gave me that advice) and some elbow grease. Wiped it off the excess with a paper towel then buffed with a microfibre cloth and voila!! I have to have my head horizontal and in line with the sun to see them. So they are still there but now are virtually invisible. I can now sleep at night. What a great product. This would be a good once a year maintenance job to restore your giotto back to its original shiny best. Incidentally not many places stock it. I googled and found a few on line suppliers.

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  • dumiya
    replied
    'Te he' yes wife is happy. That is the main criteria. I will do the coin test, I think it will be close. I am using the double basket that came with the new Rocket, it is a great improvement on the old one. The holes look to be very accurately machined. I always extract for two. Kony has greatly improved it grind once it's cones were 'run in'. It took several years @ two cups a day ��. Now its grind is very even with no clumping at all ��. It has been modified so there is no grinds retention. I will make some micro adjustments on the Kony once I have marked the present spot. I will also check the timing of the shot. Cheers for now.

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  • barri
    replied
    More importantly did your wife like it? I'm assuming your using the standard double basket. I'm using the macap m4d grinder and I love using its GOD feature. I dose by volume so the coffee just clears the screen (passes the coin or rice test) and when I weigh the coffee I get 18 to 20 gms depending on the density of the bean. That works perfectly for me. I use the standard double basket for doubles and a VST basket for singles. This way I can switch from doubles to singles without changing the grind. Great for when I'm making a cup for one. Do you make singles or have you put that in the too hard basket. Pun intended!!

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  • dumiya
    replied
    Ground exactly 18gms. The grinds did not quite touch the group filter. Extracted 55ml including the creama froth, I did not time it but it was around 30secs. Coffee was stronger but tasted good. It will need a little refining. Thanks for the suggestion.
    I notice few Rocket owners post unless they are having a problem. I guess there is a vast number of happy owners. I am posting occasionally to keep the Rocket on the forum list.

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  • dumiya
    replied
    I will certainly have a go. Wife says there could be more of a punch so long as I can retain the sweet chocolate taste that she loves. I think I actually use about 17gms. I will weigh today's grind. Thanks for keeping the Rocket thread alive.

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  • barri
    replied
    Originally posted by dumiya View Post
    Currently it takes 35 seconds to extract 55 ml from 14gms.
    I just reread your post above. 14gms in a double basket seems like a small amount. You must have a very fine grind. I use 18 to 20gms, also with 55mls in about 30 seconds. You could try a higher dose, grind coarser and you may surpass your local cafes. SWMBO might be happier too.

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  • barri
    replied
    Thanks dumiya, your post has relaxed me somewhat. Having had a VBM jnr for 4 years with virtually no steam from the group head while purging, I was surprised with the steam from the giotto. It does run hotter but I'm now convinced that there isn't anything abnormal here.

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  • dumiya
    replied
    barri, I misinterpreted your steam comment. I took it to mean spurting steam like out of the steam wand. I looked at the videos and then I did a "cooling" shot from the Group. I do get some whispy steam like in the videos and at the moment our ambient temp is around 25C so I would expect so see more if it was colder. As you may have said earlier at ~95C there will be some steam given off from the water. My steam @123c PID is just like the videos. There is no spurting steam just the water with whispy steam. I don't do a cooling shot first. It seems the beans like it hot.
    Last edited by dumiya; 1 January 2015, 10:12 PM.

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  • barri
    replied
    Check this video from "in the cup" at the 1:57 mark and note the steam when purging. https://www.youtube.com/watch?v=cZbzTKnSVY4
    Also this one. https://www.youtube.com/watch?v=pO5RqkE66nc

    All his videos have this amount of steam when purging. This is what mine's like
    I know this is the evo version and has a different pump. Also his pressure seems about 1 to 1.1 bars as mine is.

    Is this amount of steam normal?

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  • dumiya
    replied
    All good, with Chris you are in the best of hands. It is the taste that matters. I bought my first Rocket from Chris and he has been a huge help with the after sales service. Just a bit uneasy with getting the new one from Melbourne as shipping to Perth can be problematic.
    OMG a new Ferrari! All the very best coffee for 2015.
    Cheers

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  • barri
    replied
    Chris @ coffeetalk , who I bought it off, advised to drop the pressure which I've done. I'm not worried about it because my shots are good, steaming and making microfoam is great, plenty of youtube videos have shown similar amounts of steam and many posts including post #2 above have pressure set to 1 bar. So I don't think the behaviour of my machine is abnormal. As for the microscopic scratch, I'll put it down to that first scuff mark you see on your brand spanking new ferrari You forget about it after a while

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  • dumiya
    replied
    @barrie, that is really strange. My new Rocket definitely reads 123C. But the boiler pressure is around 1.2bar. There is absolutely no steam only hot water. The old Rocket Premium boiler pressure is around 1.1 to 1.25, rarely 1.3. Likewise absolutely no steam in the brew water. Neither machine needs a cooling flush. Well I don't give one before a brew.
    A post further up the thread also has excess steam.
    Is it possible that the siphon that keeps the water flowing around the group is too restricted - that is the water is not siphoning fast enough to lose its heat so it is closer to the boiler temp. .
    So as you say to lower the temp (pressure) might work. If you are worried then perhaps make a new thread as see if any of the sponsors can help.
    It does not matter if it makes good coffee as that is the object.
    Dremel with a buffer and metal polish (Bunnings) and about 5 hours might remove the scratch - not not! See the scratch as a mark of good coffee, a battle scar, and smile!

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  • barri
    replied
    My PID is on 119C and 1.05bars and there is definitely steam. More, when idling for a while as expected. I'm even thinking of dropping to 118C and 1 bar providing I get adequate steam pressure. There has to be some steam when we're talking about a temp over 90C. I still find it hotter with more steam than my VBM Jnr. If put mine on your setting, dumiya, I would get an explosion of steam when purging. I'm glad you're still enjoying your new baby. You'll have to make me a cup one day. The other day, I dropped the group handle onto the drip tray and it left a tiny scratch which destroyed my day. Most people can't see it but I know its there. Any clues on removing a small scratch.

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  • dumiya
    replied
    Update and three cheers for Rocket:
    I am happy to say that the Rocket PID and the Kony flat whites have now surpassed all of our local coffee specialists bar one. The challenge being Cimbalino, Napoleon St, Cottesloe (grrr)!
    The PID registers 123C, but no steam. I feel it was keyed into the Dimattina beans. (I bought Rocket from Dimattina WA)
    The old Rocket Premium and Rocky at work are also doing very well, not quite there - yet! Flat Whites greatly appreciated - work force seems to increase around coffee time!
    Local Harvey Fresh makes very silky froth.

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  • dumiya
    replied
    Update: the coffee just gets better and better. The steam is quite different. It is much stronger and works the milk much easier to get a good tight froth. We have gone back to full cream milk it is so much better. I really like watch the brew pressure guage showing first the preinfusion pressure then build up to 9 bars then drops just under for the brew. My grind and tamp seem just right. The 123C/1.3max boiler temp seems okay as the extraction tastes good. I do like the utter simplicity of being able to adjust the brew temp using the PID, but so far it is okay as set. Extraction rate is 55ml in around 30 secs.
    Good if there was some information regarding brew temp - grinds - beans.
    Wife happy - happy wife, happy life.

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