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Thread: How often should I change the blade???

  1. #1
    Member SamR's Avatar
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    How often should I change the blade???

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I have a LaSpaziale Junior grinder. I prepare about 8 espressos a day. Any idea how often the blade on this grinder needs to be changed?

    Thanks

  2. #2
    Mal Dimal's Avatar
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    Re: How often should I change the blade???

    Gday Sam,

    In a commercial setting, burr-plates are changed somewhere within a range of 500-750Kg of throughput so in a home setting of say, 500g per week, that would make for about 19-20 years of use on the low end of the scale.

    You just need to let your palate and experience be your guide but I would say you should get at least a good 10-15 years out of them. No need to rush.... ;)

    Mal.

  3. #3
    Member SamR's Avatar
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    Re: How often should I change the blade???

    Thanks Mal.....I thought it may have been a yearly proposition. So, what youre saying is I can relax and enjoy another coffee.

  4. #4
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    Re: How often should I change the blade???

    Or a few thousand perhaps...

  5. #5
    Senior Member clubbi4's Avatar
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    Re: How often should I change the blade???

    Quote Originally Posted by Mal link=1203309741/0#1 date=1203329550
    Gday Sam,

    In a commercial setting, burr-plates are changed somewhere within a range of 500-750Kg of throughput so in a home setting of say, 500g per week, that would make for about 19-20 years of use on the low end of the scale.

    You just need to let your palate and experience be your guide but I would say you should get at least a good 10-15 years out of them. No need to rush.... ;)

    Mal.
    So Mal, are you saying in a cafe environment using about 40kg coffee per week, the burrs should be changed about every 6 months or so??

  6. #6
    TC
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    Re: How often should I change the blade???

    I had a habit of pulling the burrs and inspecting them on a weekly basis- good opportunity to clean the grinder as well ;-)

    I never got more than around 6-8 weeks out of mine in a 30-35kg per week cafe....

    As for the decaf grinder, more like 40kg and the burrs had had it....

    If the grinder runs hot, you are almost certainly well on the pathway to replacement in my experience....

    Chris

  7. #7
    Senior Member clubbi4's Avatar
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    Re: How often should I change the blade???

    Quote Originally Posted by 2muchcoffeeman link=1203309741/0#5 date=1205104950
    I had a habit of pulling the burrs and inspecting them on a weekly basis- good opportunity to clean the grinder as well ;-)

    I never got more than around 6-8 weeks out of mine in a 30-35kg per week cafe....

    As for the decaf grinder, more like 40kg and the burrs had had it....

    If the grinder runs hot, you are almost certainly well on the pathway to replacement in my experience....

    Chris
    Hi Chris, so how can you tell by looking at the burrs, that they need changing?? Are there marks on there that give you clues??

  8. #8
    TC
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    Re: How often should I change the blade???

    Hi Clubbi,

    If you run your thumb against the edges, youd be thinking if I tried, I could cut myself here- i.e the cutting edges are sharp. If not, its probably time. Also, if theyre shot, you will probably see wear on the flat edges on the outside of the burr set which would not normally be in contact, but possibly will be in a blunt set....

    Good luck!

    Chris

  9. #9
    Senior Member clubbi4's Avatar
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    Re: How often should I change the blade???

    Thanks Chris, ill pull it apart tomorrow and check it out........

    by the way, i still have to arrange a time to come and see you for that tamper... ;)

    cheers....

  10. #10
    Mal Dimal's Avatar
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    Re: How often should I change the blade???

    Heres a couple of images of some worn burr-plates and one of a near new Rocky static burr-plate. You can see from the two worn plate images that the actual cutting edges are worn to a curve shape, no longer clean and straight like the Rocky example.....

    Worn Rotary Burr-Plate.


    Worn Static Burr-Plate


    Near New Rocky Static Burr-Plate


    Cheers,
    Mal.


  11. #11
    Senior Member clubbi4's Avatar
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    Re: How often should I change the blade???

    Very Helpful Mal.....Thanks...... ;)



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