EM6910 v Silvia v the world!

[telemaster]

Re: EM6910 v the world!

telemaster - yep Bezerra is the machine sold by Barazi - typo.  I tried a short black from the Bezerra at Barazi at Coopers Planes when I got the Rocky.  I hope that it can pump out sweeter short black than I tasted there...

Thought was Bezzera- dont worry about the espresso u got in the shop- I had a Giotto demonstrated for me when I bought the Botticelli- one of the worst espressos Ive had the misfortune to drink!
It all goes back to the adage 50% barista.....
Once u get into any sort of lovely machine, u really cant blame the gear unless something is seriously wrong with it which is probably unlikely in a showroom! Unfortunately even coffee retailers or technicians may not be the best baristas.
All the best
Brett

[ozscott]

Re: EM6910 v the world!

Brett - your the right person to ask given that you have 2 flash machine...do you notice any difference in taste & sweetness/bitterness between the 2?

Cheers

[ozscott]

Re: EM6910 v the world!

Well...I think Wushoos, Marc and I (and perhaps others too) have found the answer. If you get an EM and the shot is bitter, up the brew setting by 2 degrees and pull again and if still sour up again. I dont think that the brew temp would be 96 degrees...because surely there would be a burnt taste. My bet is that the machines are factory set and being mass produced the quality control might allow the settings to be out and it seems low on most machines. The EM6900 would have sufferred somewhat because of this as it could not be programmed. It seems the easy answer for those with an EM6910 or looking to buy one is that its programmable so program away and get a sweet shot. As I say I consistently produce sweet shots with both home roast from the starter pack and Merlo Private Blend which is a damn good coffee. Since I upped the brew temp one notch the other night on my brother and laws machine it prodcces the same sweet tasty espresso using the same blend and my grinder.

Cheers

[TC]

Re: EM6910 v the world!

Well...I think Wushoos, Marc and I (and perhaps others too) have found the answer.  If you get an EM and the shot is bitter, up the brew setting by 2 degrees and pull again and if still sour up again.  I dont think that the brew temp would be 96 degrees...because surely there would be a burnt taste.  My bet is that the machines are factory set and being mass produced the quality control might allow the settings to be out and it seems low on most machines.  The EM6900 would have sufferred somewhat because of this as it could not be programmed.  It seems the easy answer for those with an EM6910 or looking to buy one is that its programmable so program away and get a sweet shot.  As I say I consistently produce sweet shots with both home roast from the starter pack and Merlo Private Blend which is a damn good coffee.  Since I upped the brew temp one notch the other night on my brother and laws machine it prodcces the same sweet tasty espresso using the same blend and my grinder.

Cheers

Agreed Scott- In the session at First Pour, we found that maxing the group temp improved the shots somewhat. Issue is that it seems that an indicated 96 deg may not actually be that and even at that setting, there was still sourness....We would probably have cranked a further 2 deg if we could have...

To correct you just slightly, most of taste sour towards the tip of our tongue- usually the result of too coarse a grind leading to underextraction, underdose or cool group or shot...A faster pour is normally noticed.

On the other hand, we tend to taste bitter at the back of the palate- too fine leading to overextraction, overdose or group too hot or overdose...The pour is normally slower.

You can get sour and bitter together- often by underdosing with too fine a grind and often accompanied by chanelling.

Perhaps someone could pop a thermocouple in a group handle and verify this?

2mcm

[marcstolk]

Re: EM6910 v the world!

I think getting the water temp tested will settle things I think... I have the Naked PF.... but Im in Rouse Hill, Sydney....

[ozscott]

Re: EM6910 v the world!

It sounds to me as though the one tested by Chris et al was one where the brew head temp on the standard setting was simply too low to begin with and that tweaking it up did not allow it to go up far enough. I suppose that with these machines its a risk that you take - they are not bench tested like the machines that Chris and other speciality people sell to ensure optimum performance before delivery. Its what you have to expect...ie the risk...from mass produced machines. However given the price, I would still reccomend these machines in an instant to my friends. If they were unluky enough to get one where the brew temp was way too low to start with and couldnt be tweaked up high enough then its a matter of getting Sunbeam to pick it up and make the changes - given their responses so far I doubt that would ever be a problem.

Cheers

[marcstolk]

Re: EM6910 v the world!

Ozscott, it does indeed sound like this is the case... but it really needs to be settled by measuring the temp.. on a working one where 92deg is the standard out of the box temp... and work from there...

[Javaphile]

Re: EM6910 v the world!

Well...I think Wushoos, Marc and I (and perhaps others too) have found the answer. If you get an EM and the shot is bitter, up the brew setting by 2 degrees and pull again and if still sour up again.

If you look back in this thread you will see that Wushoos has stated that even with the temp tweeked all the way up the shot is still sour.

I too can taste the sourness through milk....but its fine for coffee at home.

Giotto/Maver/Brewtus?......Maybe soon I think

He may be willing to live with a sour shot with his home machine. Others obviously are not.


Java "Always seeking perfection" phile

[robusto]

Re: EM6910 v the world!

Sounds like this thread should really be called EM6910 v EM6910

---Robusto

[Wushoes]

Re: EM6910 v the world!

Ozscott, it does indeed sound like this is the case... but it really needs to be settled by measuring the temp.. on a working one where 92deg is the standard out of the box temp... and work from there...

yep...multiple people from melb, syd and bris measuring at the stock standard 92 degrees....then test again from there.

[Sparky]

Re: EM6910 v the world!


I believe that Chris and Luca have very well developed palates. So if they said it was sour at the highest setting, then there seems to be two main possibilities: The machine they used was defective, OR, most people are happy with slightly sour shots.

Nevertheless, drawing conclusions on just a few hours experience seems also less than ideal. Id be happy with a weeks use, but more happy with a months, where all the ideosyncracies can be learnt and adjusted for.

OTOH, these guys have enough collective experience to draw some conclusions with the experience theyve had.

Thermologging would provide a very useful objective addition to the subjective observations of everyone discussing this machine.

Cheers,

Mark.

[chris002200]

Re: EM6910 v the world!

It will be very interesting to see what results are logged with the temp adjustments.

The first thing that I did when I got my 6910 was to bump up the brew temp to max. No signs of burnt coffee and definately no signs of sourness. I tend to pull my shots very short, it is pulled just before blonding stage and I havent had any sour notes. It might be interesting if I drop the temp back to standard and see if there are any notes there.

Definately a far better machine and better quality of shot than my old 6900 used to achieve.

[ozscott]

Re: EM6910 v the world!

,,,Java "I might not have read this thread properly" file":

"Pushed brew temp to highest setting (+4 deg from default....92 deg? So 96 deg C) No sourness on my home roast png peaberry. " (Wushoes most recent post about it).


Cheers

[Wushoes]

Re: EM6910 v the world!

Ozscott...actually...what I have written may be confusing

At 92 and 94 deg....I sometimes get sour shots. At 96 deg, I havent had a sour shot....yet

[ozscott]

Re: EM6910 v the world!

...no problems mate...Java still did not represent your most recent post and may not have seen it...hence my tongue in cheek comment...but I am keen to see balance from all who comment editorially so that potential em buyers get the proper oil....I am glad your comments are clearly unbiased and give reasoned and clearly honest feedback, be it good or bad...Keep it up mate.

Cheers