Nurri L Type Leva owners thread

[Primacog]

The technician just installed the pid firmware upgrade on my machine and the rotary pump control dial (as well as the nice zebrawood wooden paddle covers).

The firmware changes to the PID turns the pid into a true three channel PID whereby each channel is independent of each other. This means that each channel can be adjusted to fit each component's needs independently of the othrr components whereby those changes won't affect the settings for the other channels, thus enabling the temperature performance to be ideal for each component.

The control dial for the pump makes it much easier to control the pressure of the preinfusion pump compared to changing the pressure setting with a screwdriver through a port in the back of the machine.

Has any other Nurri owner had these retrofits done to their machines yet?

[tompoland]

Not me. Not yet. Very interesting, appreciate the update.

[Lambie]

I am a little unusual as a coffee enthusiast where it comes to coffee gear as I have only ever sold one piece of gear in more than 10 years of making espresso at home, and that was my Izzo traditional spring lever that I had used for more than a decade. I really loved using the izzo and the only reason I sold it was to buy my nurri because I had since used a lot more light roasts. Much as i loved the izzo, the nurri gives me everything I used to have with the izzo and so much more the izzo was not able to deliver to the extent that I have not missed it at all.

I may end up contradicting myself in a few years to buy another lever, but given my track record of sticking with my gear, and the nurri's abilities, i somehow dont think so and believe instead that for me, the Nurri really is my end game machine. It delivers everything an Idrocompresso Slim Jim or LEVA X can give (except safety lock feature) at a small fraction of their truly prodigious cost, and for me, it is the best looking espresso machine that I have ever seen.

The slim jim makes adjusting spring pressure on the fly a possibility.Spring pressure is one of the biggest variables in coffeetaste besides temperature. So that is a very important feature the Nuri doesnt have. Also build quality of KvdW is of a different planet. I don't think you can compare the Nuri to it. Different leagues.But also different pricing of course.

[Primacog]

The slim jim makes adjusting spring pressure on the fly a possibility.Spring pressure is one of the biggest variables in coffeetaste besides temperature. So that is a very important feature the Nuri doesnt have. Also build quality of KvdW is of a different planet. I don't think you can compare the Nuri to it. Different leagues.But also different pricing of course.

The slim Jim idro and the leva X belong in a category I call hyperlevers - commercisl machines built for the cafe and able to cope with serving that level of frequency which bring many innovation to the traditional spring lever with no expense spared to make a statement as to what innovation and 21st century tech can make possible. But their high prices and massive sizes make owning them for the home to be something only the well heeled financially can afford who have both the disposable cash and the huge kitchen counter space and probably hree phase power supply in their kitchen to make it possible - especially for the idro which doesn't come in single group format.

Nevertheless i maintain the nurri machine is fully comparable to the idro and is able to do almost everything that the idro can do. It can set temperature in grouphead and both boilers independently and can regulate and maintain temperature stability at all times. It can set pre infusion pressure. The shot can be ended by releasing the water from the grouphead on command.

While i agree that adjusting spring pressure is indeed a mechanical capability that is unique to the idro and the leva X that the nurri cannot do that, however I did not claim the nurri is comparable to the idro in this respect. Nevertheless i have since discovered that the paddle system of the nurri can actually change the pressure of the lever extraction on the fly so this particular trick of the idro can actiually be imitated to some.degree by the Nurri - but in a different way. The paddle system of the nurri is an open ended system that allows for hings that would not be possible with a traditional lever to be able to be done directly by hand such as blooming shots.

Kees van der westen machines are justly famed for their build quality so most machines would come off second best next to an idro under that metric - but I did not compare the nurri to the idro for build quality. The idro is also built for the demands of a busy cafe to survive hundreds of customers ordering coffee a day seven days a week while the nurri is built for the home enthusiast so it wouldn't be fair to expect that from the latter either.

As you put it well there is a massive difference in prices between the nurri and the idro so for those of us unable to afford the idro, the nurri brings that sort of capability to the level of the more average wallet...

[Lambie]

The slim jim makes adjusting spring pressure on the fly a possibility.Spring pressure is one of the biggest variables in coffeetaste besides temperature. So that is a very important feature the Nuri doesnt have. Also build quality of KvdW is of a different planet. I don't think you can compare the Nuri to it. Different leagues.But also different pricing of course.

selfquote.

[simonko]

The slim jim makes adjusting spring pressure on the fly a possibility.Spring pressure is one of the biggest variables in coffeetaste besides temperature. So that is a very important feature the Nuri doesnt have. Also build quality of KvdW is of a different planet. I don't think you can compare the Nuri to it. Different leagues.But also different pricing of course.

Not quite sure I understand you here. Slim Jim's spring pressure adjustment is indicated as being very small and intended to equalise springs between groups for consistency rather than on-the-fly brew control.

Now you can probably assist or retard the lever on the fly, but you can do that on the Nurri too (and my other LSM lever, probably other levers as well). I think I have a video somewhere I'll upload if I can find it.

Nurri you can change the preinfusion pressure on the fly with the new dial that Primacog has, if you really want. Slim Jim seems to be adjustable only with machine apart.

Edit: video added

[Lambie]

Ok.I thought preload could be adjusted on the SlimJim.

[Primacog]

[tompoland]

Great video tx.

[Caffeinator]

Really good watch and like Tom's review, pretty accurate IMHO.

[Primacog]

I agree with most of his observations though for me, I would disagree over his view that it takes force to pull the lever - the nurri lever is really easy to pull compared to an izzo for example. Also I don't really know why it is so important to steam at the same time as pulling rhe shot- I always extract the coffee first before steaming the milk as I want to focus on the coffee and I don't think my coffee has suffered. In any event if that is an issue, just stick the steam wand joystick down to keep the steam on without stopping and use that hand to then pull the paddle to end the shot, and releasing the paddle to turn of the joystick and then returning to pull the paddle won't harm the shot anyway. Furthermore there are advantages to the left paddle not engaging and staying open like a pump machine solenoid valve because it means the left paddle is infinitely variable depending on how long one wants to leave the valve open - which enable the paddle to be used for other purposes also.

I do agree on his preference for the elapsed time reading on the shot timer to last a little longer before disappearing though.

[cuprajake]

they're harder to pull than a londinium

[Caffeinator]

Agreed. The LSM group uses a double spring for more like 12Bar. The Lond. is a single spring group- 9Bar.