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Thread: Mazzer Mini - Dosage Size

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    Mazzer Mini - Dosage Size

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I recently bought a new 09 Mazzer Mini and have been trying to get everything all tuned. The problem I am finding is that the doses coming out seem to be only about 2/3 of a full dose. I have adjusted the dosage bolt in the doser, but it doesnt seem to make a huge difference.

    Following the instructions in the manual, it says to determine the grind level, grind small amounts of coffee to test etc. etc. which is what I have also been doing. So I grind about enough to overfill the first chamber (under the shute). Is it possible that I am not grinding enough coffee at the moment to place enough pressure into the chamber to fill enough coffee?

    Any help please?

    Thanks.

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 69786F676B696263646F0A0 link=1263242505/0#0 date=1263242505
    I recently bought a new 09 Mazzer Mini and have been trying to get everything all tuned. *The problem I am finding is that the doses coming out seem to be only about 2/3 of a full dose. *I have adjusted the dosage bolt in the doser, but it doesnt seem to make a huge difference.

    Following the instructions in the manual, it says to determine the grind level, grind small amounts of coffee to test etc. etc. which is what I have also been doing. *So I grind about enough to overfill the first chamber (under the shute). *Is it possible that I am not grinding enough coffee at the moment to place enough pressure into the chamber to fill enough coffee?

    Any help please?

    Thanks.
    Hello Crema,

    If you want to attempt to dose by drop (with stale coffee ;)), you will need the entire dosing chamber to be at least 1/2 full.

    My suggestion is that you learn to free dose and then you wont need to worry.

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 702F37212A212D242427272F232C420 link=1263242505/1#1 date=1263242686
    My suggestion is that you learn to free dose and then you wont need to worry.
    Thanks 2mcm. How does that work? Any hints?

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 3C2D3A323E3C3736313A5F0 link=1263242505/2#2 date=1263242872
    Quote Originally Posted by 702F37212A212D242427272F232C420 link=1263242505/1#1 date=1263242686
    My suggestion is that you learn to free dose and then you wont need to worry.
    Thanks 2mcm. *How does that work? *Any hints?

    Watch the grinding & dosing segment of http://www.espressocompany.com.au/how-to.htm

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 6372656D616368696E65000 link=1263242505/2#2 date=1263242872
    Thanks 2mcm.How does that work?Any hints?
    Dont rely on the doser to determine how much is added to the filter basket. Dose according to what is required to pour a good shot.

    I only add enough to the hopper for the shot(s) I am preparing - roughly 1/4 cup per shot. Then I grind to a mound, gently tap the group handle on the bench to collapse the mound and settle the grinds then top up, level off and then tamp.

    The doser is intended to operate when there is a full hopper, as would happen in a cafe. The weight of the grounds in the hopper would assist with the correct dosage.

    To preserve bean freshness, many (including me) believe it is better to only add enough beans for the current shot(s).

    I have done the sweeper mod (search form it on CS or google) thus I dial the doser adjustment down so the sweeper with the tape attached sweeps the doser floor cleaner.

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    Re: Mazzer Mini - Dosage Size

    Just put in enough beans for the shot in the hopper, grind, then as its grinding place group handle under the doser and thwack thwack continuously as its grinding into the group handle till its all gone......easyer answer ;)



    Edit: ya beat me Flynn!

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 5B5F796060657A6D620C0 link=1263242505/5#5 date=1263243563
    Just put in enough beans for the shot in the hopper
    Really cant recommend that method as it encourages inconsistent grind. Free dosing is not difficult to learn and is a much better way of dosing IMHO. Its a skill that anyone purporting to be a "barista" should have mastered.

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 313B2E3939362224570 link=1263242505/4#4 date=1263243397
    The doser is intended to operate when there is a full hopper, as would happen in a cafe. The weight of the grounds in the hopper would assist with the correct dosage.
    Excellent.

    Video was helpful as well 2mcm. Thanks.

    So it is almost like having a doserless arrangement, however, in the case the ground coffee is just being passed through the doser rather than direct.

    Quote Originally Posted by 313B2E3939362224570 link=1263242505/4#4 date=1263243397
    To preserve bean freshness, many (including me) believe it is better to only add enough beans for the current shot(s).
    Just on your point Flynn_Aus, how long do you think is reasonable to keep beans in the doser for? 24 hours or so?

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    Senior Member flynnaus's Avatar
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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 7E6F78707C7E757473781D0 link=1263242505/7#7 date=1263243767
    Just on your point Flynn_Aus, how long do you think is reasonable to keep beans in the doser for?24 hours or so?
    A matter for conjecture. As I and WSully said, we dont keep our beans in the hopper at all; only add enough for the coffee we are preparing at that time.

    You could probably get away with 24 hours but beans deteriorate swith heat and light and the clear Mazzer hopper means the beans will be affected by both - especially in summer. In a cafe, the turnover of beans is such that the beans wouldnt remain in the hopper for long.

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    Re: Mazzer Mini - Dosage Size

    But then you go back to the issue that Chris raised - do you compromise on bean deterioration or grind consistency?

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    Senior Member flynnaus's Avatar
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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 4D454A4C441E1B2F0 link=1263242505/9#9 date=1263252230
    do you compromise on bean deterioration or grind consistency? *
    For small volume usage that home users like us use I *think minimising bean deterioration is much more important. The grind consistency wont be affected - the ability to consistently dispense set dose amounts is the tradeoff.

    For domestic use, I certainly wouldnt be worrying about keeping the doser topped up unless you suddenly find you have many more friends popping round than you anticipated *:o

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 22283D2A2A253137440 link=1263242505/10#10 date=1263254193

    For small volume usage that home users like us use I *think minimising bean deterioration is much more important. The grind consistency wont be affected - the ability to consistently dispense set dose amounts is the tradeoff.
    Why wont the grind consistency (do you mean quality?) be affected for home users when grinding with an empty hopper?

    Are you implying that it is only an issue in a commercial environment? :-?

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 2A3B2C24282A2120272C490 link=1263242505/7#7 date=1263243767

    So it is almost like having a doserless arrangement, however, in the case the ground coffee is just being passed through the doser rather than direct.
    Thats pretty much it, the doser is used to store the grinds until they are transferred to the group handle. The sweeping motion of the dosing chamber helps to reduce the clumps and evenly distribute the grinds before tamping. Doserless grinders tend to clump more as a generalisation.

    Just a not to avoid confusion:
    You are being a little careless in your usage of the words hopper and doser. The hopper is where the beans go at the top of the grinder and the doser is where the coffee sits before being transferred to the group handle. You mentioned beans in the doser ;)

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 366971676C676B6262616169656A040 link=1263242505/6#6 date=1263243739
    Quote Originally Posted by 5B5F796060657A6D620C0 link=1263242505/5#5 date=1263243563
    Just put in enough beans for the shot in the hopper
    Really cant recommend that method as it encourages inconsistent grind. Free dosing is not difficult to learn and is a much better way of dosing IMHO. Its a skill that anyone purporting to be a "barista" should have mastered.
    This is the method i have been using for a long time, on advice by many CSs :(, so are you saying we are better off loading up with say 200g in the hopper, grinding for a double, then remove the hopper and pour beans back in to the one-way valve bag for use later? then vacuuming out the half ground beans out of the top of the grinder after the hopper is removed? in a domestic situation?? too much for me....... :P

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 3234232832352D2F460 link=1263242505/11#11 date=1263255771
    Why wont the grind consistency (do you mean quality?) be affected for home users when grinding with an empty hopper?
    i believe what it means is that when you grind with just say......20grams of beans in the hopper, the beans will bounce around without having sufficient downward pressure from the weight of the other beans in the hopper, beans bouncing into the burrs (not being slowly swallowed up)would promote an inconsistent grind size and quality.......domestic or commercial.....


    Man thats the worst english ever! ;D

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 0004223B3B3E213639570 link=1263242505/14#14 date=1263256914
    Quote Originally Posted by 3234232832352D2F460 link=1263242505/11#11 date=1263255771
    Why wont the grind consistency (do you mean quality?) be affected for home users when grinding with an empty hopper?
    i believe what it means is that when you grind with just say......20grams of beans in the hopper, the beans will bounce around without having sufficient downward pressure from the weight of the other beans in the hopper, beans bouncing into the burrs (not being slowly swallowed up)would promote an inconsistent grind size and quality.......domestic or commercial.....


    Man thats the worst english ever! ;D
    Makes mine look good though ;D

    I have the same understanding of the disadvantages of grinding with an empty hopper as you do but dont undersand why flynn aus states that it isnt an issue in a domestic environment :-?

    I suspect he just hasnt worded his reply all that well :-?

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    Re: Mazzer Mini - Dosage Size


    I agree with flynn_aus, it diffenately pays to add the beans for that shot ONLY to the grinder. I do this every time and have yet to see any grind size variation. Could just be me. ::)

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 4C4358544C494C5B2D0 link=1263242505/16#16 date=1263258013
    I agree with flynn_aus, it diffenately pays to add the beans for that shot ONLY to the grinder. I do this every time and have yet to see any grind size variation. Could just be me. ::)
    I doubt you could see any grind size variation - it is a taste thing.

    Any way, we get back to the same question that always gets asked on CS - can you actually taste the difference?
    Some will say they can taste the variation when you compromise on bean deterioration.
    Some will say they can taste the difference when grind consistency is poor.

    In the end, if it tastes good in the cup - who cares!

    p.s I am a 200g in the hopper man - purely because I dont think my palate is up to tasting the difference, and I dont like seeing beans flying around in the hopper

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 626A65636B3134000 link=1263242505/17#17 date=1263259726
    I doubt you could see any grind size variation - it is a taste thing.
    Well i dont think i would be able to taste that much difference on my palate but probably others could.

    I only use this method so i can keep an eye on the amount of beans im using every time. I always measure before putting them in the grinder. This way i can updose/downdose as required.
    Its a good waste management technique for me hence i follow it.
    Dont want to be waiting my precious coffee beans ;D


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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 2026313A20273F3D540 link=1263242505/15#15 date=1263257858
    I suspect he just hasnt worded his reply all that well
    Probably not.

    My understanding of free-dosing is dosing through the doser rather than grinding then dosing. This helps to stop clumping.

    I just dont prepare enough shots to warrant filling the hopper. It takes me a week to consume 300 - 400g of roasted beans. I wouldnt want them sitting in the hopper that long. My grinder is close to a window so the beans would be subject to higher levels of heat and light.

    Im not sure of grind consistency of a full hopper compared to a shot or twos worth of beans. Also, mines a short hopper. I guess I could give it a try one day to see. Wouldnt be hard to set it up.

    I was trying to suggest to cremachine that s/he wont get the expected dose.

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 646E7B6C6C637771020 link=1263242505/19#19 date=1263263482
    I was trying to suggest to cremachine that s/he wont get the expected dose.
    Hi Flynn,

    Yep, got that message. Who would have thought I was opening up such a can of worms??! :-/

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 4B434C4A42181D290 link=1263242505/17#17 date=1263259726
    I dont like seeing beans flying around in the hopper
    I close the hopper gate.
    And before I get pounced on for being too succinct... with the gate closed I cant see them bouncing around.
    I can still hear them though.
    With the gate open they bounce higher.

    And Ill close with saying that if theres any grind inconsistency from doing it this way, its a "consistent inconsistency" because I do it the same way every time.

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 2435222A26242F2E2922470 link=1263242505/20#20 date=1263263592
    opening up such a can of worms
    depends on whether your grinding your worms on demand or not, ps watch the bouncing worms! ;D

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 2637202824262D2C2B20450 link=1263242505/20#20 date=1263263592
    Who would have thought I was opening up such a can of worms??!
    Well you just provided the can. For many forum participants, the can-opener is always within (too?) easy reach.

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    Re: Mazzer Mini - Dosage Size

    I recently noticed that this debate about single dose grinding attracted very detailed and sometimes heated debate on the HB website. Some of it was way too scientific and technical for me. Some debated whether overall shot quality was the same for single dose versus full (or partly filled) hopper. But many seemed to agree that it was more difficult to dial in the correct grind (for single dose grinding). I think you can have a happy medium but having say 2 days worth beans in your hopper. Sure there will be some accelerated ageing (I keep the hopper covered to reduce exposure to light). I am attaching the threads which are at times confusing and at times hilarious ...its amazing how anal and egotistical some of the posters are *;D

    http://www.home-barista.com/grinders/what-does-single-dosing-lose-t12652.html
    http://www.home-barista.com/grinders/single-dose-versus-hopper-grinding-hypothesis-about-exact-difference-t12870.html
    http://www.home-barista.com/grinders/single-dose-versus-hopper-grinding-experiment-t12929.html

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 3E3B343423325A0 link=1263242505/24#24 date=1263275985
    its amazing how anal and egotistical some of the posters are

    I hope your not talking about us. :-?

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    Re: Mazzer Mini - Dosage Size

    I had a laugh ...of course not...just read the posts and u will see what i mean!

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 232C373B23262334420 link=1263242505/25#25 date=1263276404
    I hope your not talking about us. Huh
    guilty conscious? ;D

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 0400263F3F3A25323D530 link=1263242505/27#27 date=1263286595
    Quote Originally Posted by 232C373B23262334420 link=1263242505/25#25 date=1263276404
    I hope your not talking about us. Huh
    guilty conscious? ;D
    Do you have one ? :D ;D :o

    Mine went out the door years ago... :o :o :o

    Strange how certain experiences does that to a person... 8-) 8-) 8-)

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    Re: Mazzer Mini - Dosage Size

    I had a laugh...just kidding folks :D

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    Re: Mazzer Mini - Dosage Size

    When I had the Mini, I removed the hopper and filled the throat of the grinder with beans and put a tamper ontop of them to weigh them down. I also kept the throat topped up. This made a big difference to consistent looking and timed pours. In the end the cup tasted better and was more consistent shot to shotwhich what its all about. Waste was low shot to shot as it was easy to empty the throat and Id then just grind out what was left in the throat. Small price to pay for better shots IMO.

    Prior to this, I use to only put enough beans (approx 21g) in the hopper for one shot and the shots varied even though my dose and flush technique remained consistent - I noticed between shots and so did friends. Bottom line the cup was not consistent and didnt taste as good.

    Try it for yourself and see.

    Im finding that a lot to do with what you get in the cup comes down to 1. the beans and 2. consistency, whether its your gear, technique or approach. How far you want to go is upto you and your pursuit for the best coffee you can make/get.

    A lot of this has been reinforced to me when I moved to the Kony e. But same again RE: consisteny and this is in your entire routine. With the Kony, I have to keep at least 60g in the hopper to get consistent shots. Bottom line...min 60g beans in hopper = great pour and cup. less than 60g and you get inconsistent pour from shot to shot and a less than great cup than the 60g+ in hopper shot (but still damn fine!) *;)

    Experiment for yourself and have some fun along the way *:)

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 3E3522353631313A540 link=1263242505/30#30 date=1263297551
    Bottom line...min 60g beans in hopper = great pour and cup. less than 60g and you get inconsistent pour from shot to shot and a less than great cup than the 60g+ in hopper shot (but still damn fine!)Wink
    Would you say this is the same for the Mini, or are you just referring to the Kony?

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    Re: Mazzer Mini - Dosage Size

    Quote Originally Posted by 48594E464A484342454E2B0 link=1263242505/31#31 date=1263328628
    Quote Originally Posted by 3E3522353631313A540 link=1263242505/30#30 date=1263297551
    Bottom line...min 60g beans in hopper = great pour and cup. less than 60g and you get inconsistent pour from shot to shot and a less than great cup than the 60g+ in hopper shot (but still damn fine!)Wink
    Would you say this is the same for the Mini, or are you just referring to the Kony?
    Same for the mini but the amount would be less as the minis throat is smaller. Try it for yourself and see.



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