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EM480 static and channeling

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  • A_M
    replied
    Re: EM480 static and channeling

    Originally posted by JamesM link=1225755024/20#30 date=1227785630
    OK. this evening I made three espressos (on same beans)

    First attempt, too quick, too course (grinded on 12)..
    2nd attempt, bloody awesome and perfect, (grinded on 8). consumed.... yum, lovely crema, tasty coffee!
    3rd attempt, exactly the same as attempt 2, added milk to this one, yum x2

    Sorry to those that say "you should be grinding on 12-15" or whatever.. I guess its not the case with my grinder (brand new EM0480). It extracts super fast on a courser grind setting, the pullometer hardly even rates... both of attempt 2 and 3 pulled at over 12oclock on the pullometer delish.

    the above attempts were with the single-cup basket. I might try again with the bigger basket to see if I can get a longer extraction and even more goodness

    got my dose technique down too, all good!
    Single PF Vs Double shot will require a change in grind and tamp..

    Leave a comment:


  • Thundergod
    replied
    Re: EM480 static and channeling

    Originally posted by JamesM link=1225755024/20#30 date=1227785630
    Sorry to those that say "you should be grinding on 12-15" or whatever.
    Thats what the manual says IIRC.

    Not all 0480s grind identically on the same number.

    The numbers on your grinder are relative positions for you from one grind to the next.

    A lot of the "you should be grinding on 12-15" is said as a starting point.
    I know it is when I say it.

    Leave a comment:


  • JamesM
    replied
    Re: EM480 static and channeling

    OK. this evening I made three espressos (on same beans)

    First attempt, too quick, too course (grinded on 12)..
    2nd attempt, bloody awesome and perfect, (grinded on 8). consumed.... yum, lovely crema, tasty coffee!
    3rd attempt, exactly the same as attempt 2, added milk to this one, yum x2

    Sorry to those that say "you should be grinding on 12-15" or whatever.. I guess its not the case with my grinder (brand new EM0480). It extracts super fast on a courser grind setting, the pullometer hardly even rates... both of attempt 2 and 3 pulled at over 12oclock on the pullometer delish.

    the above attempts were with the single-cup basket. I might try again with the bigger basket to see if I can get a longer extraction and even more goodness

    got my dose technique down too, all good!

    Leave a comment:


  • JamesM
    replied
    Re: EM480 static and channeling

    Thanks, Ill stick with the peru beans I tried this morning when I get home instead of opening my next bag up.. Cant wait to actually have my first espresso instead of putting milk in all these failures! haha

    Leave a comment:


  • acoggins
    replied
    Re: EM480 static and channeling

    James,

    It might take a lot of beans, but I would keep your routine the same, and adjust one notch finer each time until you reach what you would consider a good shot. Probably should be something like 12-2 o clock on the fullyawesomeshotometer and around 25 mls in 25 seconds.

    Theres a bunch of videos on youtube. Do a search for em6910 or em 6910.

    I did some videos the other day for my own reference, but they dont really show my technique; just the shot itself.

    If I can get the time, Ill try and do a few more vids showing my technique for you.

    oh, and I would try and stick with the one bean for now. changing from one SO or blend to another is going to change the game slightly. Just another variable to watch out for.

    Speaking of variables, I had some dud shots yesterday and couldnt work out why. Turns out the wife had the evaporative cooling on yesterday, which Im sure was causing the clumping in my ground beans. So many variables to watch out for.

    Leave a comment:


  • JamesM
    replied
    Re: EM480 static and channeling

    Well this morning I tried yet another bean (super fresh) Peru Villa... ground at 13 on my grinder for sh1ts and giggles, dosed it, locked it in, removed the basket to look for an impression, it was only just touching the showerhead, maybe still too much dose!?

    Pulled the shot, it didnt even get past maybe 10oclock on the fullyawesomeshotometer. It extracted way too fast.

    Having said that, it tasted better than my last shot, much less bitter.

    I have no doubt its my dosing, Perhaps I need to dose a little less and let the water and grind do the rest. Im pissed I have to wait till the end of NOV to get into the sunbeam coffee school. Speaking of coffee school, should I take MY grinder with me, to assure myself that Im not going insane? (so I can have a pro check it all out?)

    This morning I went with the scotty dose technique.. grind into basket, knock on bench, grind, knock, grind, sweep with finger to top of basket, TAMP, tap, TAMP, lock in. I suspect I swept too close to the top of the basket.

    One of you super awesome sunbeam owners do a video of your dose and shot for me. hah

    Maybe Ill do one and post it so you can all tell me what Im doing wrong.

    Leave a comment:


  • A_M
    replied
    Re: EM480 static and channeling

    Originally posted by ACog link=1225755024/20#25 date=1227695441
    James,

    If youre feeling resistance when you lock the PF in, its almost certainly over-overdosed. If this happens, I usually take it out to check for a showerhead impression, then on the next shot lower my dosage a little.

    You may also find if its got too much in there, youll get leaks down the side of the PF as the shot is running.
    I concur and have to say that OVER DOSING is as bad as Under dosing...

    In addition if you Over Tamp and / or it is uneven; it will find a fissure and channel.

    Leave a comment:


  • acoggins
    replied
    Re: EM480 static and channeling

    James,

    If youre feeling resistance when you lock the PF in, its almost certainly over-overdosed. If this happens, I usually take it out to check for a showerhead impression, then on the next shot lower my dosage a little.

    You may also find if its got too much in there, youll get leaks down the side of the PF as the shot is running.

    Leave a comment:


  • Senator
    replied
    Re: EM480 static and channeling

    Ignore the numbers on the grinder, they are relevant as your own reference only, go by the shot.

    11 isnt nearly far enough round, should be hitting between 2 & 3 oclock for optimal pour. For a double (my std) this gives me around 50ml in 25 secs which is the point that it goes watery.

    Leave a comment:


  • JamesM
    replied
    Re: EM480 static and channeling

    Well I just pulled another shot, this time the Sulawesi Rante Kupua Toragah (what a mouth load to say).. It extracted at about 11oclock on the wankometer on the front of the EM6910... so still not perfect. I grinded at "10". grind, knock, grind, knock, grind, level with fingers/hand, then TAMP, tap, TAMP. It was dosed up a little high because I felt the resistance in the group handle as I locked it in.

    It still looks like its extracting too fast, turning from dark to light quite quickly... I cant believe I have to grind even finer!? I took a sip of the shot and it wasnt that pleasant, a tad bitter, so I added milk and drank it. *sigh*

    Leave a comment:


  • acoggins
    replied
    Re: EM480 static and channeling

    Wait until you get it right and then tell us all that the shot you just pulled tasted nice

    Leave a comment:


  • JamesM
    replied
    Re: EM480 static and channeling

    Nice!

    My shipment from beanbay just arrived, I ended up with Decaf Mocha Java, Peru Grace Villa Estate, PNG Wahgi AA, and Sulawesi Rante Kapua Torajah. As my wife doesnt really drink coffee, I opened the DECAF mocha Java first. Grinded a couple of steps higher (to 10) on my sunbeam than with my stale beans and dosed.. The extraction was too fast, so either I still need grind at around 8, or my dose technique sucks... Still tasted really nice!

    Leave a comment:


  • acoggins
    replied
    Re: EM480 static and channeling

    Hi James,

    Ive been getting quite good results for a few weeks now, since I started this thread.

    I had a 1kg bag of stale beans which act quite differently compared to the fresh stuff but was still worthwhile for practising my dose and tamping. I didnt consider it a waste of time. in fact, I had to use those beans up somehow.

    I only do two doses with a knock on the bench and light tamp in between now. Ive also found that I dont need to use the WDT as I did before. Perhaps thats the weather...Im not sure.

    Just remember, only change one variable at a time.

    Leave a comment:


  • JamesM
    replied
    Re: EM480 static and channeling

    Ive been having really mixed results with my sunbeam grinder and EM6910... in my other thread, I mentioned Im griding on 7 or 8, which is considered really fine.. any coarser and I end up with a running-tap like extraction registering bugger all on the top pullometer on the front of the machine.

    This morning I tried a combination of two dosing techniques Ive been using and it worked well.. I also tamped a little lighter as suggested by AM above.

    dose, knock on bench to settle, very light tamp, dose, knock, light tamp, dose, final tamp not too hard, no polish, lock and load.

    This mornings pull was better than usual, considering Im using stale stuff from the local italian supermarket (Mago Coffee in big brass wall mounted containers which they swear is refilled almost weekly from the supplier). I managed between the sweet spot on the totally sik pullometer. Not quite there.

    I can say that this combination of knocking my basket to let the grind settle, then gently tamping/flattening to allow more grind has worked wonders compared to just knocking, or just gentle tamping. Maybe better grind distribution in the basket.

    The puck came out indented by the shower, in one lump and broke nicely in half.

    Im not going to bother trying to perfect my dose and pull until my fresh beans arrive, I almost feel like Im wasting my time! Oh well, practice I spose! Unfortunately I firmly believe that practicing with stale beans just isnt going to help me in the future.

    Leave a comment:


  • acoggins
    replied
    Re: EM480 static and channeling

    I personally prefer ristretto over espresso. if Im buying a coffee in the afternoon from a reputable cafe, will often order a ristretto straight up.

    Leave a comment:

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