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Thread: Blades or burrs

  1. #1
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    Blades or burrs

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    This question shows how new I am at this. I have tried to search for a discussion [I really have] but to no avail.

    I am considering moving to the machine plus grinder phase [from the Automatic machine] and have begun looking at grinders. And become totally confused! So, the first question I have to resolve is what is the consensus on efficacy and longevity of grinders using burrs or blades.

    Or is that a how long is a piece of string question?

    Thanks for any advice. I warn you I shall have many more questions to come.

    Peter

  2. #2
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    Re: Blades or burrs

    blades chop, burrs grind, do you want your coffee chopped or ground? Longevity isnt the major issue as both types can be made poorly. If you want to buy a grinder for espresso then I would suggest that the absolute minimum machine you consider would be a Sunbeam EM450 burr grinder for $150. From this price point they get expensive very quickly for the improvement in espresso. That said I love my $1000 Mazzer

  3. #3
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    Re: Blades or burrs

    Quote Originally Posted by tojo1 link=1190089121/0#0 date=1190089121
    This question shows how new I am at this. I have tried to search for a discussion [I really have] but to no avail.

    I am considering moving to the machine plus grinder phase [from the Automatic machine] and have begun looking at grinders. And become totally confused! So, the first question I have to resolve is what is the consensus on efficacy and longevity of grinders using burrs or blades.

    Or is that a how long is a piece of string question?

    Thanks for any advice. I warn you I shall have many more questions to come.

    Peter
    GDay tojo - the only silly question in the one that remains un-asked *:)

    Blade grinders should be avoided at all costs due to:
    (1) Heat - as the blades whir around, they create friction. *This heat in turn affects the delicate volatile oils within the coffee bean and affect flavour (even before you get to extract).
    (2) Inconsistency - although once finished, a blade grinder may look like it has created a grind of equal consistency, it isnt (not at the micron level of scale!) *Inconsistent particle sizes can lead to channelling and incomplete infiltration of the water through the entire puck.

    Burr grinders all the way *:)

    Cheers,

    -A-


  4. #4
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    Re: Blades or burrs

    Thanks muppetman.
    I should have said I want a grinder for espresso and I presume ground is preferable to chopped, no?

  5. #5
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    Re: Blades or burrs

    Thanks Alchemist.

    I am wiser now.

  6. #6
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    Re: Blades or burrs

    Quote Originally Posted by tojo1 link=1190089121/0#3 date=1190093271
    Thanks muppetman.
    I should have said I want a grinder for espresso and I presume ground is preferable to chopped, no?
    yes ground is prefereable. Hence why you are looking for a coffee grinder.



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