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Lelit Bianca

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double boiler lelit pressure profiling
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143K views 757 replies 100 participants last post by  yahyoh  
#26 ·
DavecUK said:
No the preinfusion system has been disabled (as it should be), so as not to interfere with paddle operation. it has two methods of preinfusion already, one via the paddle and one via electronic control of the pump.
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In my lelit mara the e61 was very sweet with the shots, I hope that bianca is still as sweet.

My lelit mara broke down and the supplier for little money offers me a bianca for 15 days ... great doubt ..

Davecuk I'm a great follower of yours, niche zero is coming jajaja

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#31 ·
DavecUK said:
I'm just going to add a little something to this thread. Lelit have just contacted me, because they think it might have been me (or a few others also mentioned in the e-mail) that leaked a cutaway photo of their prototype E61 group. The point they made was twofold.

1. They are not very happy

2. The group is a prototype and has been subject to change

The machine I reviewed was a prototype and subject to change which is why I respected that and have said very little about it. I would like to see @matomoto respect that and edit to post to remove the photo. I have already edited my reply to remove it....because now I know this is not an officially released photo. If the photo doesn't go, I will alert the mods to it so they can remove.

Thanks

Dave
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The photo was obtained from another coffee forum, I never thought that its diffusion was prohibited. My only intention was to share opinions about this machine.

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#66 ·
Stanic if you need something else ....

For now I have canceled the preinfusion. I'm playing with paddle and it's complicated for me, to see if someone with more expertise teaches us something.

Opv 11bar

77ee8bc7c4609a1c0d8dacf0a1694238.jpg
343ffb760ff6ddf66b49f9ee1b7926b5.jpg


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#71 · (Edited by Moderator)
As far as my expertise goes, it is not possible to reproduce or I do not achieve the profile curve of a normal e61, since the 1st coffee compaction although the paddle needle has decreased the flow does not manage to break the resistance of the tablet and the pump, let's not forget, keep working as we have it, in my case 9.5 bar.

Sorry, It is possible that so much technicality does not translate correctly into the English language.

I hope that @DavecUK makes a revision of the machine soon, because there are several concepts of the machine that I do not have clear.

At the moment the advantages are for ME:

-Very silent and nothing vibrates

-Thermal stability

-Pid very complete

-Dual boiler!! Power steam!!

Things that I do not like or I still do not know the secret:

-I can not play the profile of e61 lelit mara, which I loved so much

-In general, even using the naked portafilter, I do not get so much cream

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#75 ·
DavecUK said:
He is just coming to terms with the differences of flow control and a PD pump set to constant 9 or 9.5 bar vs true pressure profiling using a computer, pressure sensor and gear pump. If you understand what's happening or why, it becomes easier to find a routine that works well..It's why this is one of the longer and harder reviews I have to do for BB, plus the user guide is going to be more difficult than usual.
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Exactly, I already understand the difference. But your help on how to shoot will be welcome.

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#78 ·
Nikko said:
If you want to pre-infuse at a lower pressure, then you need to start with the paddle in a position somewhere to the left (to give the pressure you want) and leave it there for the duration you want. Then open up to let the pressure rise.

.
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If you put the paddle to the left from the beginning the flow is so low that it will take a long time to fill the water chamber and take pressure

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#81 ·
Nikko said:
That is true. If you are in a hurry low pressure preinfusion may not be for you.
Click to expand...
Maybe with some origins with medium roast can lengthen the shot. My impression with the Italian blend is that if we take more time it remains bitter.

Example, huahuatenango origin


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#146 ·
DavecUK said:
Theres no way you guys could have read it all and watched all the Videos....<sigh> have I wasted my efforts again.

I may do some more videoed profiles, it does take some time. L:elit have a Video with a few examples. I'll be quite honest though, although there are lots of ways it could be used. I think the best results will be pure manual control via the paddle and variations on what I have already done e.g. loooonger infusions, or shorter....slower or faster ramp rate, then controlling max pressure and the drop rate. Some of the other things might well be likened to driving a rally car with your feet because you can, not because it's better!

Perhaps I'll do some more B&W slo mo shots wiv music
;)


Seriously though, I thought it was a really good machine, rather have that than many many other machines on the market, a lot of them costing more money. As for a V vs B comparison, don't ask me, I like them both for different reasons, If I didn't I wouldn't own one of each would I?

</sigh>
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I feel sad to see that you think that I have not seen all the videos, I already tell you that I have seen them , except the tours of the machine.

Your work seems very important to me to minimize it by not seeing it. If I say that I will see them again patiently, because the English language is not my mother tongue.

I would never ask for a comparison between vesuvius and bianca.

Best regards.

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#166 ·
DavecUK said:
Yeah a shot like that is no problem. It can also do slayer style shots no problem as well.
Click to expand...
Dave, a question.

I have two occasions that when I run out of water, it spoils my shot. If I remember correctly, before there was a lack of water but I could finish the shot ..

Could it be that the 70 liter lelit's filter has picked up air?

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