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  • matth3wh
    replied
    Love it! :-D

    Leave a comment:


  • Javaphile
    replied
    Originally posted by matth3wh View Post
    Given this thread is about the pores in our VST baskets opening up I'm guessing that is the key factor in your coffee experience. Let us know how you get on after testing with a brand new VST basket.
    ;-P
    Sorry, never gonna happen.


    I do not like them
    matth-3-wh.
    I do not like them green or brown,
    I do not like
    them any how..

    I do not like them in a tea.
    I do not like them with a VST.
    I do not like them if it is new or old.
    I do not like them here or there.
    I do not like them anywhere!

    I have my gear now finally sterile.
    Never again will it be so feral.
    How truly rotten they really were.
    Never again will my burrs see their ilk,
    Not even with milk.
    Not here nor there!


    Java "My apologies to the Dr." phile

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  • matth3wh
    replied
    Originally posted by javaphile View Post
    Java "YUCK" phile
    Given this thread is about the pores in our VST baskets opening up I'm guessing that is the key factor in your coffee experience. Let us know how you get on after testing with a brand new VST basket.
    ;-P

    Leave a comment:


  • Javaphile
    commented on 's reply
    I need some good coffee. In line with the thread on here about ok quality coffee being available in stores, but against my better judgement, I bought some store brand beans from a big regional chain when they were on sale this week. Between the sale price and a couple of other discounts the price was so low I gave in and bought a few bags to test figuring I'd do a pot/few cups of each and give the rest of the beans away. I've now tested 2 of the bags, an espresso blend and a Colombian blend. I won't even bother opening the other 2 bags. <Shudder> Even with hardly any sense of smell or taste, which is why I figured it'd be safe to try them now, they were the worst cups of coffee I can ever remember having! I'm going to have to sterilize every piece of equipment they've touched to avoid any cross contamination with my usual beans.


    Java "YUCK!!!" phile

  • noonar
    replied
    Get better soon Java. Need some coughee?

    Leave a comment:


  • Javaphile
    commented on 's reply
    338 The flow rate can be determined by either one, which is why I explicitly stated "with all else being equal those few ten-thousandths of an inch add up to a greater than 28% increased flow rate" (Emphasis added for this comment.)

    With Noonar's remarks in mind some quick back of the brain calcs show the 28% should actually read more like 68%.


    Java "Corrections 'R Us" phile

  • Javaphile
    commented on 's reply
    Ah my bad, it was late at night and my head's all stuffed up from some bug and I missed that. I do believe you're right as I seem to recall an r^4 in the flow rate by pressure equation.


    Java "Sniffling away" phile

  • Dimal
    replied
    Synesso baskets showing 0.0014 and 0.0015 holes new (assume inches as US site) were showing 0.0016 to 0.0018 after 21 months.
    Ah, I misread the above...
    1.5 thou' diameter holes, not the range of tolerance to size.
    That is one small, little, tiny hole alright; about the thickness of fine human hair.
    I guess they use specialised laser measuring instruments for this sort of thing...

    Mal.

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  • lancruiser
    commented on 's reply
    What are the characteristics of precision baskets?

    1. The holes are consistent in size within strict tolerance,
    2. The pattern and distance between holes are consistent within strict tolerance,
    3. Consistency between 2 baskets are within strict tolerance.

    Points 1 and 2 ensure even extraction assuming that coffee bed preparation is good. This contributes to better extraction in terms of higher TDS when compared to non-precision baskets. Point 3 ensures that when baskets of the same type is used in multiple group machines, the brew across different groups are consistent (assuming that the groups behave consistently), i.e. you can use the same grind settings for each basket.

    This is thinking out loud...

    Assuming that the basket do wear out over time and assuming that the wear on each hole is the same. For commercial multi-group machines, it would be difficult to maintain the same wear on all the baskets across the groups as some baskets may be used more than others. There will be a case to replace the baskets every so often.

    However, for the home barista, it may not matter if only 1 basket is ever used. If the wear is even, then points 1 and 2 still hold. If the holes becomes consistently larger, then the home barista just need to grind finer to maintain the desired brew time. The extraction will still be even.

  • 338
    commented on 's reply
    Javaphile, I don't know, but would the flow rate be more determined by the puck or the holes in the basket?

  • SanderP
    commented on 's reply
    Get the Hoff onto it

    Cheers

  • prh
    replied
    ...and thus was born the Great Coffee Snobs Basket Wear Blind Tasting Challenge of 2020.

    Leave a comment:


  • noonar
    replied
    I'm talking flow not area.

    Leave a comment:


  • Javaphile
    replied
    Just one square. The area of a circle = π r2 (pi radiussquared).


    Java "circlesquared" phile

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  • noonar
    replied
    Agreed Java. Flow rate is related to the square of the square of the radius from memory. Any non-standard radii (for whatever reason) will perform differently to those that are standard. Not sure how this effects espresso but it is sure to have some impact. Would like to know also.
    Last edited by noonar; 16 November 2020, 05:48 PM. Reason: typo

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