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Thread: Breville BES820 & Breville BGC450 Grinder Concerns

  1. #1
    martinhyson@msn.co
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    Breville BES820 & Breville BGC450 Grinder Concerns

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi,

    Im new here and my name is Martin.

    I own a Breville BES820 and Breville BGC450 Grinder.

    I have owned the machine for a few months.

    I’m not sure if anyone is familiar with the BES820 but it has a pressure gauge on the front of the machine and is meant to be an indicator for the quality of the coffee extraction.

    ‘Optimal extraction’ for this machine according to Breville is towards the mid-top of the pressure gauge.

    I have tried everything with relation to types of grinds and coffee to get the gauge into the ‘optimal zone’ but have been unable to do so.

    This is my second grinder and I thought it would make a difference and in some ways it has as the extra fine settings seems to make nice black coffee shots but I am concerned because the pressure gauge will not rise into the ‘optimal extraction zone’.

    I spoke with Breville yesterday and they were helpful but now they need to inspect the machine and it could take a week or more.

    I was advised if they are unable to identify a problem then I have to pay.

    However, I have done everything humanly possible by trying different grind settings and have wasted about 0.5kg of coffee beans trying to tweak the grinds to reach the ‘optimal extraction zone’ on the BES820 but have been unable to do so.

    Would anyone like to share their ideas on what I could or should do?

    Thanks,
    Martin

  2. #2
    Junior Member
    Join Date
    Dec 2011
    Posts
    8

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    are you using a single basket or double basket?

    i have a bes860 and with the single basket it is always in the higher end of the pressure gauge - sometimes the shot is a little bitter, but if i fiddle around with the dose and get it in the middle of the range, then it is sour. I think it has something to do with the slopped wall.

    The double basket is no problem whatsoever, apart from being a double shot.


  3. #3
    martinhyson@msn.co
    Guest

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    Hey,

    Thanks for responding* :)

    I am using the standard baskets/filters that were included with the machine and I believe they are ‘dual walled and I use both the single shot and double shot baskets/filters and there seems to be no difference on the pressure gauge when using either of these baskets.

    I have read about other people purchasing different baskets/filters as they haven’t been happy with the dual wall designs and have opted for a single wall but I don’t consider I should have to spend additional money buying extra gear.

    I have a good tamper that I bought separately and have experimented with many different tamping techniques and haven’t achieved a higher range on the machine past the third point on the gauge so am just confused I guess when Breville advise that this is the ‘under extracted zone’ yet the machine seems to be making reasonable short blacks with lovely crema.

  4. #4
    Senior Member
    Join Date
    Sep 2011
    Posts
    395

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    When all else fails, Disregard the Pressure gauge, Im of the belief that its only really there to look pretty. You really should be looking at the time of your pour, rather then what the gauge is telling you

    30 ml in 25-30 seconds from the push of the button is usually what people suggest for decent coffee

    Unfortunately, the coffee grinder you do have is somewhat notorious for being not really suitable for Espresso, it can be modded to be, but in doing so you void the warrenty.

    The Stock baskets dont really help matters much either, as theyre prone to clog up once youve gotten close to a real espresso grind, I modded mine in 20 minutes with a dremel and cut-off wheel, removed the bottom layer and left it an unpressurised basket, This made it easier to dial the grinder in.

  5. #5
    martinhyson@msn.co
    Guest

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    Yes I do agree; I think ignoring the pressure gauge all together now is the best approach but unfortunately this gauge was a fail for Breville but generally I consider the machine makes good coffee.

    Thanks for providing additional info about the time it takes to get a good coffee and I will keep this in mind!

    I will consider other baskets in the future but for now will work with what I have. It’s interesting what you mentioned about the BGC450 not being a great coffee grinder as I previously had a Sunbeam EM0450 and struggled to get a nice grind and actually consider the Breville is better but each to their own and plus I am a newbie :(

    I appreciate everyone taking the time to respond to my posts and all the best as I will now close this thread.

    Thanks,
    Martin

  6. #6
    Senior Member
    Join Date
    Dec 2008
    Posts
    1,036

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    Hi Martin,

    I own an 820 and 450. With the dual wall baskets you should defintely get the pressure gauge moving up to the middle even with no coffee in the basket! The single cup dual wall basket will do so quicker than the double cup dual wall, but it should still get there.

    The BCG450 doesnt grind as fine as the EM0450 in general, unless youre EM0450 was old and needed a shim. I found the BCG450 not fine enough, even on the finest setting, so I modified it to go a bit finer. Its output isnt that consistent however

    Quote Originally Posted by 7B7764627F787E6F657978567B6578387579160 link=1336436266/0#0 date=1336436266
    an indicator for the quality of the coffee extraction
    its an indicator of the extraction pressure - the only indicator of the quality is your eyes, nose and tongue ;)

    The dual wall baskets provide 2 things: 1. fake crema, and 2. back pressure so that the pressure is closer to 9 bar with any grind you make. If your grinder is able to get you there with a single wall basket, this is the better choice.

    Hope that helps - I would be expecting Breville to find something wrong if yours is quite different to what I described :)

  7. #7
    martinhyson@msn.co
    Guest

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    Hi,

    Thanks for confirming my concerns as this is what I sort of suspected based on what I have read and seen online. Now I will have to surrender my machine and coffee for a while but who knows maybe something good might come out of this…

    Thanks for your advice and detailed info!

    Martin

  8. #8
    Senior Member
    Join Date
    Dec 2008
    Posts
    1,036

    Re: Breville BES820 & Breville BGC450 Grinder Concerns

    Behmor Brazen - $249 - Free Freight
    no probs, FWIW I sent mine off a few months ago (machine and grinder). The machine came back (fixed I hope?!) and I got a new 450! They service people dont say much, so dont expect any quality discussions with them, nevertheless they acted as promised and postage was free.



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