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Thread: Single Dose Hopper for Macap M2M - a quick hack

  1. #1
    Caffeinated kopigeek's Avatar
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    Single Dose Hopper for Macap M2M - a quick hack

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I've got a variety of beans and of recently I have been single dosing so I thought I would quickly hack a hopper tonight.

    I used a chrome coated small plastic cocktail shaker (the top half) and my (now useful) plastic tamper as a weight and lid.

    It wasn't a perfect fit so I taped some foam to the bottom of it to make it snug.

    Looks the biz

    ImageUploadedByTapatalk1424520533.445280.jpg

    ImageUploadedByTapatalk1424520553.437887.jpg

    ImageUploadedByTapatalk1424520566.177943.jpg
    Last edited by kopigeek; 22nd February 2015 at 09:21 AM.

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    Mal Dimal's Avatar
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    Quote Originally Posted by kopigeek View Post
    Looks the biz
    Indeed it does...

    A lot more flash than my very basic hopper substitute kopi...

    Mal.

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    Caffeinated kopigeek's Avatar
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    Quote Originally Posted by Dimal View Post
    Indeed it does...

    A lot more flash than my very basic hopper substitute kopi...

    Mal.
    What are you using Mal?

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    Mal Dimal's Avatar
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    Quote Originally Posted by kopigeek View Post
    What are you using Mal?
    A plastic cup with the bottom cut out of it, and an aluminium tamper sitting inside the top....

    Mal.
    kopigeek likes this.

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    Do you even need any hopper at all if you are single dosing ?
    most of the grinders I have used held 50+ gms in the burr carrier with the hopper removed .
    Tamper or glass spice jar used to prevent "popcorning"

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    caffeinated lemoo's Avatar
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    I have a M4D and a 58mm basket fits perfectly on it

    it kinda just sits there and stops any beans from escaping their inevitable death by grinding

  7. #7
    Mal Dimal's Avatar
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    A nominal 58mm Tamper/Basket or whatever, is too large to fit directly inside the throat of my grinder. Anyway, the extra storage offered by the plastic cup holds enough for three doubles, which is often all I need to make at any one time. Any more than that, and out comes the HUGE hopper...

    Mal.

  8. #8
    Caffeinated kopigeek's Avatar
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    The diameter of the throat on the M2M is 50mm and without a hopper of some sort a single 18gm dose is hard to fit in the throat of the grinder.

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    caffeinated lemoo's Avatar
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    ahh must be a smaller throat then, I just assumed they were similar diameters. my bad

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    Quote Originally Posted by Dimal View Post
    Anyway, the extra storage offered by the plastic cup holds enough for three doubles, which is often all I need to make at any one time. .
    i understand, but that is no longer a "single dosing" set up !

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    Hi Kopi,

    Can you clear the chute on the m2m for single dosing? If I'm not mistaken, the doserless setup can retain quite a bit of coffee. For example, even after you grind everything in the hopper, there'll still be 3-4g(random number) retained from the burr chamber to just before chute. Effectively, you're mixing a bit of old grind into the new one. On the scale, you probably will still get what you put in (15g in, 15g out, but 3g out of that 15g may come from previous grind session). It's probably not that important, but you still need to pulse in order to evaluate different coffee correctly.

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    Caffeinated kopigeek's Avatar
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    Quote Originally Posted by samuellaw178 View Post
    Hi Kopi,

    Can you clear the chute on the m2m for single dosing? If I'm not mistaken, the doserless setup can retain quite a bit of coffee. For example, even after you grind everything in the hopper, there'll still be 3-4g(random number) retained from the burr chamber to just before chute. Effectively, you're mixing a bit of old grind into the new one. On the scale, you probably will still get what you put in (15g in, 15g out, but 3g out of that 15g may come from previous grind session). It's probably not that important, but you still need to pulse in order to evaluate different coffee correctly.
    Hi mate. Yep you can clear the chute with a long thin brush or skewer.

    I found that once I cleaned the chute and burrs it only retained less than a gram (but this is in no way a scientific test). Yes I do pulse.

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    Cheers mate. Thanks for the explanation.

    I too single dose myself and have been looking for something that allows me to single dose without brushing/cleaning the chute. Looks like no gain again. :P I like to try different coffee at one time so single dosing is the way to go. Waste less coffee too.

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    Caffeinated kopigeek's Avatar
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    Quote Originally Posted by samuellaw178 View Post
    Cheers mate. Thanks for the explanation.

    I too single dose myself and have been looking for something that allows me to single dose without brushing/cleaning the chute. Looks like no gain again. :P I like to try different coffee at one time so single dosing is the way to go. Waste less coffee too.
    I don't clean the chute though. I just give it a tap after each grind and some retained grinds fall out.

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    Mal Dimal's Avatar
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    Quote Originally Posted by blend52 View Post
    i understand, but that is no longer a "single dosing" set up !
    Sheesh... Picky picky.

    99% of the time, a single coffee at a time is all I make....

    Mal.

  16. #16
    Life-long Learner DesigningByCoffee's Avatar
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    Can't a single dose simply be achieved by tipping the measured beans straight into the standard hopper, and then grinding them all out, and sweep / pick / snort / blow / jiggle / vibrate / vacuum or levitate all the grounds out of the chute? That's what I used to do with my M4 (bar the levitation)…

    The main reason for a micro hopper is to allow you to keep some weight on top of a much smaller amount of beans to 'fool' the grinder into behaving like it's got a full hopper, giving a more even grinding (my micro hopper holds about 100g - with about 75g retention in the burr set ).

    But in reality you're never going to make the most of this micro-hopper technique 'single dosing' with an exact measure of beans anyway - half are into the burr cavity even before you start, and the weight/tamp will stop applying any pressure long before the beans run dry! You'll always need more than a 'single dose' for this method to work…

    So maybe measure an extra 2g, run it all through, sweep out as much as you can, and enjoy your brew!

    Cheers Matt

    Just a slightly amusing story - I know a bloke who used to strip down his grinder to the burrs every time he made a coffee - that's a guaranteed way to avoid retention and get 18g in / 18g out!

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    Quote Originally Posted by DesigningByCoffee View Post
    Can't a single dose simply be achieved by tipping the measured beans straight into the standard hopper, ....
    But in reality you're never going to make the most of this micro-hopper technique 'single dosing' with an exact measure of beans anyway - half are into the burr cavity even before you start, and the weight/tamp will stop applying any pressure long before the beans run dry! You'll always need more than a 'single dose' for this method to work…!
    Hmmm ?... Odd then, that so many people have been using the weighed dose of beans so effectively for many years !..... Must be down to the ability of the individual user to figure out the optimum technique.!

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    Life-long Learner DesigningByCoffee's Avatar
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    Quote Originally Posted by blend52 View Post
    Hmmm ?... Odd then, that so many people have been using the weighed dose of beans so effectively for many years !..... Must be down to the ability of the individual user to figure out the optimum technique.!

    Sorry - might have been a bit obtuse - that's was my point
    I've used the weighed / measured dose method too straight into the hopper/throat of my M4 - it works very effectively!
    But that uses a different technique to the usual 'weighted micro-hopper' which Mal and myself use - where you use more beans and a weight / tamp on top - but just grind what you need. But is generally not a 'single dose' method (ie clean grinder in - beans - clean grinder out) method as defined



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