Jump to content
Dunk

LM LM Flow Rate

Recommended Posts

So late night i undertook the task of replacing the flow restrictor in my LM mini for the 0.6mm that their commercial machines use. This makes the flow rate more acceptable, around 75-80ml per 10 seconds rather than 120ml, and helps with channeling etc.

To my surprise when i got in there there wasn't one fitted at all (no 0.8mm) which might explain some of the issues i have been having. Anyway initial thoughts are good. Currently finding:-

- grind much courser for the same of extractors

- much less channeling

- blonding happening more constantly

- espresso flow starts after 8-10 seconds rather than 4-5

- Good mouth feel and flavour

 

Only pulled a few shots so far so will report back as i keep testing. Also got the pressured turned down to 7.5 bar.

Share this post


Link to post
Share on other sites

Wonder if that's been contributing to the results you've been finding with your ek.


Laissez les bons temps rouler

Share this post


Link to post
Share on other sites
7 minutes ago, ashcroc said:

Wonder if that's been contributing to the results you've been finding with your ek.

Maybe maybe, guess we will find out over the coming weeks.With the 0.8mm restrictor missing i would assume the flow hole was around 1.5mm!!!

First couple of shots with the curve natural Ethiopian were very berry like even considering it is 3 days off roast.

  • Like 1

Share this post


Link to post
Share on other sites
Maybe maybe, guess we will find out over the coming weeks.With the 0.8mm restrictor missing i would assume the flow hole was around 1.5mm!!!

First couple of shots with the curve natural Ethiopian were very berry like even considering it is 3 days off roast.

Is that on the ek or major?

It's mighty odd the jet was missing. Did you get the machine new or 2nd hand?

  • Like 1

Laissez les bons temps rouler

Share this post


Link to post
Share on other sites

That was with the EK43, gonna try the major as well.

Got it direct from la marzocco. SO even more weir.

  • Like 1

Share this post


Link to post
Share on other sites
That was with the EK43, gonna try the major as well.
Got it direct from la marzocco. SO even more weir.
Must've been a Friday afternoon build.

Laissez les bons temps rouler

Share this post


Link to post
Share on other sites
6 minutes ago, ashcroc said:
14 minutes ago, Dunk said:
That was with the EK43, gonna try the major as well.
Got it direct from la marzocco. SO even more weir.

Must've been a Friday afternoon build.

It would appear that way!

Share this post


Link to post
Share on other sites
30 minutes ago, Dunk said:

That was with the EK43, gonna try the major as well.

Got it direct from la marzocco. SO even more weir.

wow, handcrafted indeed. 


I write a blog, it's nothing to do with coffee ...

https://rjwinc.wordpress.com

Instagram - rjw_inc

Share this post


Link to post
Share on other sites

Glad you got it sorted. Interesting to see the immediate improvements as well. 


GS3 MP, Ceado E92 and E37s, Feldgrind. Niche.

_____________________________________________________________________________________________________________________________________________________

 

 

 

Share this post


Link to post
Share on other sites
Posted (edited)

Glad it's sorted, did you feedback to LM re their QC? Give their marketing blurb around hand built and the price you pay for this, I am a little shocked that an item can go out like this. All companies have QC mistake at some point I guess they are more prevalent around a mass built item than one where you are paying a premium like this. Is anything else missing, did they offer a full free service at a uk dealer?

Edited by Mrboots2u
  • Like 1

I write a blog, it's nothing to do with coffee ...

https://rjwinc.wordpress.com

Instagram - rjw_inc

Share this post


Link to post
Share on other sites
2 hours ago, Mrboots2u said:

Glad it's sorted, did you feedback to LM re their QC? Give their marketing blurb around hand built and the price you pay for this, I am a little shocked that an item can go out like this. All companies have QC mistake at some point I guess they are more prevalent around a mass built item than one where you are paying a premium like this. Is anything else missing, did they offer a full free service at a uk dealer?

I know the guys from la marzocco quite well as i'v done the coffee fest photography for them for a number of years. I'm sure its just a one off but its kinda interesting as most people wouldn't dismantle the boiler at any time so would never find out.

Got to admit it did confuse me for a while when i opened it up, spend about 10 mins looking for the normal one to remove before working out it wasn't there and i could just screw the new one in!!!

Share this post


Link to post
Share on other sites
1 hour ago, Dunk said:

I know the guys from la marzocco quite well as i'v done the coffee fest photography for them for a number of years. I'm sure its just a one off but its kinda interesting as most people wouldn't dismantle the boiler at any time so would never find out.

Got to admit it did confuse me for a while when i opened it up, spend about 10 mins looking for the normal one to remove before working out it wasn't there and i could just screw the new one in!!!

personally id expect a free local service but if your happy then all good.


I write a blog, it's nothing to do with coffee ...

https://rjwinc.wordpress.com

Instagram - rjw_inc

Share this post


Link to post
Share on other sites
3 hours ago, Mrboots2u said:

personally id expect a free local service but if your happy then all good.

I will see what they say, but yeah might be not a bad idea.

Share this post


Link to post
Share on other sites
23 hours ago, ashcroc said:

Wonder if that's been contributing to the results you've been finding with your ek.

So did a little comparison today with the mazzer and the EK43.

Both shots 18 in 45 out 30 seconds.

The EK shot now tastes so much sweeter and i feel more flavourful! The mazzer shot almost tasted ashy with lack of clarity. I hope that the flow restrictor was the main reaason why the EK was tasting so dull before. Maybe cause it was just throwing so much water through it.

Share this post


Link to post
Share on other sites

I changed the restrictor to a 0.6mm on my LM previously. I cannot imagine how hard it must've been to get even a drinkable cup out of a machine with no restrictor. It must have been driving you mad before. 

Share this post


Link to post
Share on other sites
2 hours ago, Planter said:

I changed the restrictor to a 0.6mm on my LM previously. I cannot imagine how hard it must've been to get even a drinkable cup out of a machine with no restrictor. It must have been driving you mad before. 

It can't believe how fine i had to grind and the channeling was crazy. Though at 6 bar it was do able.

I'm now up to 7.5 bar and starting to experiment again though the shots definitely run better, just have to recalibrate my whole technique! Kinda need someone to show it how to now hahah!

Share this post


Link to post
Share on other sites
It can't believe how fine i had to grind and the channeling was crazy. Though at 6 bar it was do able.
I'm now up to 7.5 bar and starting to experiment again though the shots definitely run better, just have to recalibrate my whole technique! Kinda need someone to show it how to now hahah!
I know what you mean. I went to the
.6mm and 6bar with my LM and that was the sweet spot for me. Know a few who had it between 7-8 and that was also a good area. So don't think it'll be too long before you're back to it.

Sent from my LYA-L09 using Tapatalk

Share this post


Link to post
Share on other sites
2 minutes ago, Planter said:

I know what you mean. I went to the
.6mm and 6bar with my LM and that was the sweet spot for me. Know a few who had it between 7-8 and that was also a good area. So don't think it'll be too long before you're back to it.

Sent from my LYA-L09 using Tapatalk
 

Ahh to tempt me back to 6 bar. need to stop changing variables hahaha!

Share this post


Link to post
Share on other sites

Since getting this all back together i really want to verify its my poor or less than ideal technique making bad shots over the machine. Is anyone London based or know of someone London based who has used a Mini and could swing by one day just to have a quick play and make sure its me not the machine?

@ashcroc@Mrboots2u @lake_m

Share this post


Link to post
Share on other sites
Posted (edited)

Sorry @Dunk I'm split between Aberdeen and Darlington otherwise would have been happy to combine knowledge.

What in particular are you not happy with? 

Edited by lake_m

GS3 MP, Ceado E92 and E37s, Feldgrind. Niche.

_____________________________________________________________________________________________________________________________________________________

 

 

 

Share this post


Link to post
Share on other sites
3 minutes ago, lake_m said:

Sorry @Dunk I'm split between Aberdeen and Darlington otherwise would have been happy to combine knowledge.

What in particular are you not happy with? 

No worries, guess i just feel a bit all over the place with the shots im making compared to what i have experienced other make with the same machine. For example at the coffee fests.

Share this post


Link to post
Share on other sites
36 minutes ago, Dunk said:

Since getting this all back together i really want to verify its my poor or less than ideal technique making bad shots over the machine. Is anyone London based or know of someone London based who has used a Mini and could swing by one day just to have a quick play and make sure its me not the machine?

@ashcroc@Mrboots2u @lake_m

im lancs. i would normally say it's no the machine but given they managed to miss a gigliceur off.....

if you are unsure ask for a free service or replacement machine as the qc was clearly poor on yours. for a premium hand made product its not good enough.

if you don't t feel this is the way to go pick a pressure, Stick to it.

pick a known coffe , buy a kg 

 


I write a blog, it's nothing to do with coffee ...

https://rjwinc.wordpress.com

Instagram - rjw_inc

Share this post


Link to post
Share on other sites
No worries, guess i just feel a bit all over the place with the shots im making compared to what i have experienced other make with the same machine. For example at the coffee fests.

Maybe a silly question, but you're not using Wandle water in your machine are you?

 

I'd offer to pop over but have never used anything remotely close to a LMLM & even your major is out of my league so not sure what help I could be.


Laissez les bons temps rouler

Share this post


Link to post
Share on other sites
1 minute ago, ashcroc said:
51 minutes ago, Dunk said:
No worries, guess i just feel a bit all over the place with the shots im making compared to what i have experienced other make with the same machine. For example at the coffee fests.

Maybe a silly question, but you're not using Wandle water in your machine are you?

Haha no waitrose essential

Bt of back story

I got it direct from la marzocco as a favour for helping them out with photography for the coffee fest.

It was a machine used in one of their comps in the "warm up" area and apparently this is why the gicleur was removed. According to La Marzocco.

I think a comparison is needed and its probs just my poor technique than anything.

Share this post


Link to post
Share on other sites
42 minutes ago, ashcroc said:

Maybe a silly question, but you're not using Wandle water in your machine are you?

 

I'd offer to pop over but have never used anything remotely close to a LMLM & even your major is out of my league so not sure what help I could be.

I guess even if you tasted a shot and said if it tsated good or not that would be a starting point.....

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • About:

    Coffee Forums UK is the UK's premier coffee forum Started in June 2008 by Glenn Watson, we now have more than 22000 mainly UK based members, and welcome more than 3000 members and visitors from around the world each day! With strategic investment and digital expertise from the Jackson Lockhart team (Tait Pollack and Adam Bateman), we are taking Coffee Forums UK to the next level, and are delighted to share the journey with you.

    New Members:

    We are often referred to as the friendliest forum on the web and we look forward to welcoming you onboard.

    Terms of Use

    Advertising

    Coffee Forums Media Kit

    Buy Advertising Space

    Donate

    Get Your Supporter Badge (per year)

×
×
  • Create New...