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Thread: New Rocket Giotto Question

  1. #1
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    New Rocket Giotto Question

    Just unpacked my new toy and wanted to double check a couple of things!

    The portafilter is really tight in the group when heated up. Like I have to hold the machine when twisting the portafilter back in. Is this normal when new?

    Currently playing around with dialling in on the single basket but 7-9 grams for a single per the instructions seems way too low. Looks to be around the 14g mark. Is that usual?

    Also puck is very damp when disengaged after pulling a shot. Is that usual?

    Thanks everyone 😀

  2. #2
    Senior Member Yelta's Avatar
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    Quote Originally Posted by eaglemick View Post

    The portafilter is really tight in the group when heated up. Like I have to hold the machine when twisting the portafilter back in. Is this normal when new?
    Congratulations on the new machine Mick, the Rocket name seems to be well respected.

    Your question re the portafilter! doesn't seem right to me, should need very little effort to lock into place, a couple of kg at the very most, certainly shouldnt need to hold the machine, suggest you give the people at Jetblack a ring and discuss the matter.

    Damp puck not a major issue.

    Enjoy your new toy.

  3. #3
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    Donít bother with the single basket. No one uses them.

  4. #4
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    Single baskets are netoriously difficult. Because you’re using a smaller amount of coffee, getting the right dose can be hard, and small variations to that right amount make a big difference. They also just tend to not produce as good a shot.

    With the portafilter issue, you mean you have to jam it in to stop leaking when you pull a shot? It definitely shouldn’t require so much effort that you have to hold the machine. You should feel the portafilter seat nicely and be firm, but not forced in. Could the group seal be not seated properly?

  5. #5
    Senior Member Lovey's Avatar
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    Quote Originally Posted by eaglemick View Post
    Just unpacked my new toy and wanted to double check a couple of things!
    The portafilter is really tight in the group when heated up. Like I have to hold the machine when twisting the portafilter back in. Is this normal when new?
    Thanks everyone ��
    How tight are you trying to put the portafilter back in? It could be that you're forcing it past where it is seating against the group head seal, thus making the machine move around.
    Also, is there anything stuck on the bottom of the feet that could be making them slippery, like tape or other packing material?
    Dimal likes this.

  6. #6
    Senior Member flynnaus's Avatar
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    Quote Originally Posted by eaglemick View Post
    The portafilter is really tight in the group when heated up. Like I have to hold the machine when twisting the portafilter back in.

    Also puck is very damp when disengaged after pulling a shot. Is that usual? 
    Congratulations on your new addition.
    The portafilter may not lock in all the way to '6 o'clock' until the group seal wears in a bit. My Giotto was like this when new or when I insert a new seal. Lock it in until tight but don't try to turn so hard that you are moving the machine.

    The wet puck could be because you are under dosing or the grind may be too fine. But if your shots are pouring right and taste good then, as Yelta said, don't worry about a little water on the top of the puck. I still get this occasionally.

    PS one of the first lessons I learned was not to waste time trying to use the single basket. Stick with the double basket.
    Dimal and eaglemick like this.

  7. #7
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    Thanks guys, the accountant in me likes the single basket as my coffee goes further but I only have 400g of coffee left until I roast up some more so I think I’ll swap to the double tomorrow as I’m entertaining too! Just concentrate on getting that dialled in!
    zeezaw likes this.

  8. #8
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    Whichever you choose it's best to stick with the one basket until you're pulling great shots with it.

    When dialling in try to change only one thing at a time, it will make it easier to understand the effect of each change.
    eaglemick likes this.

  9. #9
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    New batch of coffee this morning with the double basket, espresso was perfect

    The steam wand is a beast compared to my old machine though so completely over did it, cue frothy milkshake looking flat white
    Dimal and Yelta like this.

  10. #10
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    Yeah, that's going to be the biggest challenge. Getting used to the steam power. A top I received was to simply practise steaming with water until you find the sweet spot. Then switch to milk to fine tune the technique.

  11. #11
    Super Moderator Javaphile's Avatar
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    Water with a drop of dish soap in it.


    Java "All frothed up" phile
    Toys! I must have new toys!!!

  12. #12
    Senior Member Stan's Avatar
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    If you look at https://coffeesnobs.com.au/milk-frot...microfoam.html you will get some handy tips for making good froth

  13. #13
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    Re: The "Irish' in you Mick!

    I disagree entirely regarding the single basket. The single will dose around between 10 and 11g. (10.3 if you want to be precise)
    And this with a mid weight tamp will leave the finished puck below the showerscreen and undisturbed when locked away.
    YOU will need to back off your grinder setting ( set for a dble / triple) slightly, as the single basket has less 'open area' to flow which
    in my experience is where most of the issue with so called 'fickleness' comes from.

    * As said above don't fall into the trap of overtightening the handle. two finger pressure is sufficient.

    This shot can pull a magnificent coffee at 18g thru to 25g's out, in up to 25sec. Including 6 sec pre-infusion.

    If a long black drinker add the shot on top of, up to a 100g hot water at 80deg.
    Or blend with 140g to 160g of nicely silked milk.
    I've found with a good mid roast, its a cracker of a (base) drink to work from.

    And your wife will think your a genius !
    Don't ask me how I know !
    PS* Just mark your grind setting with a white out pen to allow you to change easily from single to dble etc. A micrometric grinder will give you the adjustment range that works best with this concept.
    EA

  14. #14
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    Giotto Rocket

    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by eaglemick View Post
    Just unpacked my new toy and wanted to double check a couple of things!

    The portafilter is really tight in the group when heated up. Like I have to hold the machine when twisting the portafilter back in. Is this normal when new?

    Currently playing around with dialling in on the single basket but 7-9 grams for a single per the instructions seems way too low. Looks to be around the 14g mark. Is that usual?

    Also puck is very damp when disengaged after pulling a shot. Is that usual?

    Thanks everyone 
    Hi
    I've owned my Rocket for about 3 years now and made 4-5000 coffees on it by now. It's far from perfect, but I embrace the eccentricities much like an Italian sportscar. My pet complaint about the rocket being that the drip tray doesn't extend out enough, so there is an invariable mess when I clean up.

    Don't be worried about the tightness of your portafiller, it will loosen up in time. As for the wet puck, stick with the single shot insert if that is what you want to do. You can and will get good results from it. If my puck is a bit soggy, i've found from the school of hard knocks that it is usually my grind is too fine.

    I actually wish there was an insert between the 2 factory supplied ones. Mind you, (at least for me) I've found the double shot only holds about 1.5x the amount of coffee of the single. Much more, then you're hitting the basket.

    One thing I've never mastered is when turning off the steam, it seems to blow small bubbles into the milk as if there is some cavitation in the steam wand somewhere. It has done this since new.

    Leaving it to settle, tends to fix things a lot but it is frustrating when you see your perfect milk.. become less than perfect.

    Best of luck
    Peter

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