Modifying = Graef CM 702 Coffee Grinder 2/3

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MJ Bartending

MJ Bartending

Күн бұрын

Пікірлер: 66
@mahog85
@mahog85 9 ай бұрын
@mjbartending thanks this is really useful. I'm based in the UK and I bought a Cm 702 on eBay that came without washers but unfortunately Graef dont ship to the UK anymore. Do you have the dimensions of the washers so I can buy a standard commercial set of washers to replace it? I know they are 0.2, 0.25 and 0.3mm thickness. but what are the internal and external diameters I need? thanks so much!
@mjbartending
@mjbartending 9 ай бұрын
No worries! Outer ring diameter : 14mm. Inner opening diameter : 7mm
@mahog85
@mahog85 9 ай бұрын
thanks so much!@@mjbartending
@cedricraoul679
@cedricraoul679 4 жыл бұрын
Hi there, Sorry if I'm late to the party but I just got myself a Graef 702 and my results are currently terrible for espresso. Even at 1, it grinds like the coarsest setting... Thanks to you, I knew I had to use the washers but nothing worked. Maybe the circular grinding wheel is not properly seated, I'll try that but for now, I have to say that I'm puzzled by the grind I'm getting and don't really know what to do next...
@mjbartending
@mjbartending 4 жыл бұрын
Hi Cedric, that probably means the grinding wheel is not properly seated, as you suspect ! Here's my how to fix it: kzbin.info/www/bejne/q3PEYoSEbciietk
@burakrasan3290
@burakrasan3290 Жыл бұрын
Hi thank you for video, is this machine can capabble espresso and filter Coffee grind at same stup? How coarse can it grind when it is optimizaed for espresso?
@mjbartending
@mjbartending Жыл бұрын
Hi Burak, you can't grind for both at the same time because the number of washers underneath the grind cone ia different. For espresso I'm grinding between #5 and #10, with two 0.2mm washers installed. Fro Aeropress I'm grinding at #14-13 with one 0,2mm washer installed. For V60 I'm grinding at #20 without any washers installed. For Chemex I'm at #25, also without any washers under the grind cone.
@mjbartending
@mjbartending 5 жыл бұрын
Note: when installing the second (circular) grind wheel, test its fixation by pulling it upward by the thin metal ring. If you can lift it out, you need to reinsert and realign until it is impossible to pull out. If you don't do this, the wheel will move up and down while grinding, resulting in an enormously coarse grind. Still good enough for cupping, but not for actual drinking (and possibly damaging your grinder in the long run)!
@mustafabacak8963
@mustafabacak8963 3 жыл бұрын
Hello, I bought graef cm 702. I attached the 2 circular thin elements that come out as you show. but it grinds in the same thickness both in the 1st setting and on the 24th setting. Where could I have made a mistake? I would appreciate it if you give information.
@mjbartending
@mjbartending 3 жыл бұрын
@@mustafabacak8963 Hi Mustafa, can you report any particulars on the grind? Is it very coarse or very fine? And what kind of cup of coffee do you get as a result?
@Barabaka35
@Barabaka35 3 жыл бұрын
Hi. Thank you for the video. I had no idia about those 3 extra washers. In 1.5 years using the grinding become not so fine like before so your video is really great way out. Tell me please is it normal that upper grinder wheel fixed not very hard and moving a bit when I touch it?
@mjbartending
@mjbartending 3 жыл бұрын
@@Barabaka35 thanks! very little vertical momevent is normal, half a mm or so.
@belenhein1809
@belenhein1809 3 жыл бұрын
Thanks for this video, it actually answered the question I had regarding how to get the grind to be finer for espresso. I did not see the washers with the packaging. Not sure we we got them.
@mjbartending
@mjbartending 3 жыл бұрын
This seems to happen more often! Best contact your dealer, or Graef itself.
@Marija154
@Marija154 3 жыл бұрын
odlican video ,da li mogu da se naruce te podloske i gde,ја ih nisam dobio u mom modelu graef 702 ,da li se uopste dobijaju uz aparat? I koji su promeri / mere ,hteo bi da napravim Treba mi unutrasnji,spoljasnji precnik i debljina
@mjbartending
@mjbartending 2 жыл бұрын
Здравствуйте Саша, и извините за поздний ответ. Шайбы следует включить! Диаметр снаружи: 14мм. Диаметр отверстие: 7,5мм. Толщины: 0,2мм & 0,25мм & 0,3мм, в магазине инструментов или бытовой техники.
3 жыл бұрын
I have this grinder since early 2018, it's still kicking however by now I have all but one washer added to still get an espresso grind.
@mjbartending
@mjbartending 3 жыл бұрын
Interesting, it grinds more fine than before?
3 жыл бұрын
@@mjbartending No, just the opposite. I had to add more washers as time passed to keep the same grind range.
@mjbartending
@mjbartending 3 жыл бұрын
@ that makea more sense
@mjbartending
@mjbartending 5 жыл бұрын
A guide for the extra washers*: If your shots are coming out too quickly with the factory washer installed, try adding the 0.2mm washer to the already installed factory one. . Still to quick? Replace the 0.2mm washer by the 0.25mm one. STILL too quick? Replace with the 0.3mm washer. Every step up increases the finesse / decreases coarseness. Shots coming out too slow? Remove the factory washer and see what you can get. Although that shouldn't be necesssary as from the factory, its most coarse setting is really really coarse. Instead, try dosing differently or even a different coffee/roast. F.i.: I got way better results and much more quickly with a fresh batch of Monsooned Malabar, than with Colombian Caturra. *Adding more than one washer at a time gave me a coarseness that was waaay to fine, but perhaps it could work for your coffee machine. However, the manual states to only add one at a time. Just try a finer setting, below 5, if you need to.
@Barabaka35
@Barabaka35 3 жыл бұрын
In my case there is no factory washer. Only these 3 extra.
@nben81
@nben81 3 жыл бұрын
Hi! After assembling, it seams the button on the back was still unlocked. When you twisted the upper part, I did not hear the clicking sound, add possibly this is why the basked came out. It happened to me, a gentle push to the upper part above the button helped.
@mjbartending
@mjbartending 3 жыл бұрын
Hi Ben, thanks! You are right, I address the correct way in the unofficial 4th part about cafétière grind
@micx2056
@micx2056 2 жыл бұрын
@@mjbartending Hello , where is the updated video ? Helpppp !.
@mjbartending
@mjbartending 2 жыл бұрын
@@micx2056 hi Mic, hopefully this vid adresses your issue. If not, let me know: kzbin.info/www/bejne/q3PEYoSEbciietk
@christosvaid4454
@christosvaid4454 3 жыл бұрын
im getting this waiting it with a tracking number and anxiously want make my espresso machine non presurized to test. Is it true at some forums i read that because its a cheap grinder doesnt make consistent results or just they are perfectionist people who want expensive machines ? i believe i will make a big jump coming closer to the real taste of fresh grinded coffee beans. Thanks in advance
@mjbartending
@mjbartending 3 жыл бұрын
Based on my and other viewers experiences combined: it depends on your espresso machine. With a budget model (
@christosvaid4454
@christosvaid4454 3 жыл бұрын
@@mjbartending Very constructive comment. My machine is indeed under 200 usd range its a swan retro one got it at a super deal. (im budget oriented for now! ) i like the fact it that at 5 your delonghi couldnt handle it too fine powder. Someone said this gaggia classic also got blocked this is a good sign graef is capable at least and above level from delonghi k79 grinder. Your comment with the 0.20-0.25 discs was helpful and i think i will find the golden line of what produces the best result. thanks again!!
@mjbartending
@mjbartending 3 жыл бұрын
@@christosvaid4454 glad to be of help 🙌. It's cool to see many people try different set ups within a budget range and get good results by being inquisitive. Check out my coffee document with all my graef grinder settings. Link is in the description of all my graef set up videos, including the latest one on v60. Good luck!
@christosvaid4454
@christosvaid4454 3 жыл бұрын
@@mjbartending yesterday it came today i bought some espresso beans. I had a lot of failures tasting sour and bitter espresso. Then somewhat it got better at 12-13 grind level..bellow 9 it was choking my swan retro non pressurized mod machine.. I will try again tomorrow.
@mjbartending
@mjbartending 3 жыл бұрын
@@christosvaid4454 how many washers do you have installed?
@figuraaaaa
@figuraaaaa 4 жыл бұрын
Hey i opened the my grinder just like you did in your first video and after putting everything back in its place the machine won’t turn on. If i open it again and push the small black button and close the circle it turns on, but not in its normal stage... what did i do wrong, maybe you could help:)
@mjbartending
@mjbartending 4 жыл бұрын
Hi, what do you mean with "not in its normal stage"?
@mjbartending
@mjbartending 4 жыл бұрын
Even without response I deduct that a small part jumped out when you opened it fully, as happened with me. If corrrect, you should now have only a small spring and one tiny plastic knob, but miss a second plastic part that pushes down on the circuit breaker when closed. With that part missing, it won't work. To circumvent this, I permanently closed the circuit breaker as I explain in the video. If you give me your emailaddress or app, I can even send you pictures op how to do that. I hope that answers your question.
@figuraaaaa
@figuraaaaa 4 жыл бұрын
MJ Bartending you totally answered my question. I put a small wooden stick in the hole so when i close it it pushes the black button. Its working again, still its a little bit annoying but it doesn’t effect the taste of my coffee 😄
@mjbartending
@mjbartending 4 жыл бұрын
@@figuraaaaa good to hear you found an alternate solution !
@figuraaaaa
@figuraaaaa 4 жыл бұрын
MJ Bartending I’m still very curious how the lost part looks like!
@raccoonator2583
@raccoonator2583 2 жыл бұрын
Guys! Beware before doing this, when you reapply the bottom burr, ALWAYS aline it with the little metal bump part and the little crevice underneath the burr! If you don't do that the grinder will NOT work and it will damage the machine.
@mjbartending
@mjbartending 2 жыл бұрын
You mean the small hole right underneath the cone? Absolutely true!
@pauldunbar
@pauldunbar 3 жыл бұрын
I found this video very useful as I am having trouble getting a fine getting for espresso. My machine is same mechanism but a cm800. Can I ask, did the extra washers come with your machine? I don't remember getting extra ones. Do you think I could just try any washer in there?
@mjbartending
@mjbartending 3 жыл бұрын
Thank you! Mine did come with extra washers but yours wouldn't. The 800 series "fine adjustment" should by done by twisting the second adjustment wheel on the inner grinding wheel unit itself, if I'm correct. They made it easier that way, compared to the 700series. However, since they are so similar, I guess that in theory you could put a 0.2, 0.25 or 0.3mm washer underneath the cone, as long as its outer diameter is not larger than the base of the cone. Have you tried changing the grinding unit's fine adjustment yet ?
@pauldunbar
@pauldunbar 3 жыл бұрын
@@mjbartending ah, only just realised you could adjust the top grinder! Will have a look at that first, thanks!
@mentos502
@mentos502 2 жыл бұрын
Udało się dzięki 😅
@darianowaczyk8173
@darianowaczyk8173 4 жыл бұрын
Hi! I have one small question - are the both washers you added have 0.2 mm? My friend have this machine and he says that coffee is still too coarsely ground, so he want to buy and add new one. Thank you in advance for your help! :)
@mjbartending
@mjbartending 4 жыл бұрын
hey Daria, there is always one 0.2mm washer installed from the factory already. Irongear (see comments below) even had two washers in his/her machine, not sure which the other one was. For myself, I added one 0.2mm washer to the 0.2 washer that was installed from the factory. Your friend can try to add a 0.25 or 0.3mm washer before buying a new machine. The difference between 0.2, 0.25 and 0.3 may seem insignificant, but its not. For my espresso machine, adding more than 0.2 was too fine and my shots took too long/over-extracted. Careful, by adding two or more washers (up to 3or 4total) the coffee might get stuck when you grind at finer settings (
@darianowaczyk8173
@darianowaczyk8173 4 жыл бұрын
Great! It is now clear. Thank you so much ;)
3 жыл бұрын
@@mjbartending Hi, I am looking in my package and I do not see any additional washers? Did you found yours somewhere online or you got them in package?
@mjbartending
@mjbartending 3 жыл бұрын
@ Hi Ivan, I got them in small bag that was inside in the original packaging. A different user commented when he bought it new, two washers were already installed. Best check under the cone to see if they are there. If not supplied, you should definately contact the seller.
@IronGearProductions
@IronGearProductions 4 жыл бұрын
Hi, I have a problem with my machine. It simply grinds too fine. there's barely any difference in elevation of the upper grind wheel between the coarsest and the finest setting. The coffee that comes out on the coarsest setting looks ready for espresso making and when I turn it to the finest setting, the coffee will barely come out. I tried removing the cone to check if there's a factory-placed washer below it so I can remove it (as i found out by your video, there is) but I can't remove the nut on the top because the cone is turning with the motion of my wrench. What can I do?
@mjbartending
@mjbartending 4 жыл бұрын
Hi there, it may sound simple but have you tried turning in the other direction? For some reason they reversed the turning direction so "unscrew" is "tighten" for this cone head. Had me confused too, first time. If that doesn't help, try spraying some oil in the seam of the nut and the cone, then tap it gently but firmly with a rubber mallet. Pick up the machine and topple it a few times to really get the oil in between the nut and cone. Then twist and try to hold the cone in place as you twist the nut off. Let me know how it goes.
@IronGearProductions
@IronGearProductions 4 жыл бұрын
I was able to counter the movement with a plastic spoon which i pushed down next to one of the 3 "fins" of the platform the cone is standing on. I noticed there was not just one but TWO washers below the cone. Firstly I removed one, then both washers and tried it again. It seems like the coffee is coming out coarser now. But still way far from actual french press size. It does work, but I'm kidna disappointed. Do you have any other ideas?
@mjbartending
@mjbartending 4 жыл бұрын
@@IronGearProductions sorry for the late reply, my notifications were not working. If you are grinding without spacers already, you've reached its max. factory coarseness. You could try sanding the bottom of the grinder cone, but before that, I have one suggestion: try grinding with the circular grinding wheel NOT properly seated (the one with the ring handle and white markings). When you do not fully lock the grind wheel in the top, it will stay up a full millimeter or more, thus increasing the grind space and creating an incredibly coarse grind. The noise will be louder but it may just give you what you need.
@mjbartending
@mjbartending 4 жыл бұрын
@@IronGearProductions yet another option: underneath the ball bearings there are two large, thick washers. Removing one could greatly increase coarseness. try this first!
@vin-0feb977
@vin-0feb977 3 жыл бұрын
@@IronGearProductions hi just purchase one last week. Had the same problem and found out 2 washers were factory installed assuming there was only 1. So I had 3 washers which were almost turkish coffee fine. Even with 2 washers the coffee was espresso fine, even at its most coarser setting. I decided to remove 1 more washer to try if i cud better set the grind setting.
@markdoyle4718
@markdoyle4718 4 жыл бұрын
Would you recommend this Grinder still? I see this video is from a year ago.
@mjbartending
@mjbartending 4 жыл бұрын
Hi Mark, yes I would. It is cheap yet delivers grind in a broad spectrum for all my methods. I don't need auto-dosage since I make coffee with these various methods (frensh press, espress, etc.)
@markdoyle4718
@markdoyle4718 4 жыл бұрын
@@mjbartending Ah thanks man, I'll get using for espresso with the Delonghi Dedica. I'm just using a blade grinder now and isn't great hahaha
@markdoyle4718
@markdoyle4718 4 жыл бұрын
@@mjbartending I'm after buying the same grinder and I'm going to use your assessment document you made to help me get the right espresso 🙌
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