DavecUK I think what @Viernes may have meant is that Antonio is listed as the inventor (in fact, the “Vostok” patent lists both Paolo Cortese and Antonio Nurri as inventors). The invention/patents are assigned to Elcor/M&V.
Interesting that none of the several “patent pending” features of the Nurri are shown on Google Patents yet.
Cuprajake re the counter weight would the front leg design not stop the machine pulling forward
Yes - it seems more intrinsically stable than the ACS design which ‘reuses’ a non-lever chassis and leaves the front feet ~3 cm back from the front of the machine. My observation was just that since both machines have roughly the same component counts/sizes (2 stainless boilers of ~2 and 1 litre, a “LSM-style” group, a pump, a tank and a few valves and electronics parts) and the same weight and outside dimensions, the Nurri must also use some additional weight towards the back. The paddles don’t seem that heavy (and the ACS has more PID boards, which are not zero weight, especially with SSRs).
Either that or the body is incredibly strong: 8 kg of steel is ~1 m² of 1 mm-thick sheeting, i.e. roughly 1 mm extra thickness around all the machine (the ACS body isn’t flimsy either…)
Edit - corrected feet distance from front, as explained below
CoyoteOldMan Can I ask where you got your information from, regarding the feet being 10cm back from the front?
CoyoteOldMan where in the uk are you?
if you’re close to a leva/nurri owner perhaps you can have a look at one in the flesh, which is always best
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
Viernes The TOF group was discarded for technical reasons.
Excuse my ignorance trying to follow this thread. What’s a TOF group?
The brand of the leva group the lsm style
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
dfk41 My mistake. I remembered this on the distance between the front feet https://www.home-barista.com/levers/acs-vesuvius-evo-leva-t73845-330.html#p855256 (posted by someone who is posting here too, I think) and I misremembered the size of the case as 580mm, which is the Nurri’s case size. Obviously, since the ACS is ~70 mm shorter, the distance is not 100 mm, but about 35…
The points about the counterweight remain - i.e. (in a sense) the ACS ‘needs’ one, possibly out of excessive caution, but the Nurri also has “extra weight” somewhere.
Cuprajake Wallingford, about half-way between Oxford and Reading. If anyone is within a couple of hours drive and can put up with an inquisitive Italian for a bit, I’d be really grateful. Thank you for suggesting it!
MediumRoastSteam TOF is an Italian components manufacturer that produces the La San Marco style group employed in the ACS - https://en.tofin.com/products/dispensing-units/ (product code C13/1700, significantly modified for ACS). Funny point for me, I just found out they are 20 minutes away from my sister’s house (and probably supply my brother-in-law’s company making radiators and bathroom towel-heaters).
CoyoteOldMan No problems matey! I had cause to take the left side and back panel with additional weights off for a week or so, and I can confirm it did not tip once. I think I remember Dave suggesting that the weight might be a good idea at a stage in its production prior to him receiving his test machine. I might be wrong but I think @Stevebee who uses his Evo commercially, has removed the weight and is quite happy. Perhaps he can comment
dfk41 Yes, I think he said he removed it (either in the “Evo Leva” thread over here, or the super-long one on the other forum) - in fact, I believe it’s from him that I learned that it’s 8 kg! 😁
I’m sure if you had the goal of getting it to tip and did an unnatural pull you could get it to tip but that applies to any lever. In normal use neither myself or any of the other 3 baristas have had the slightest movement. The table it is on is smooth and a bit slippy so I use 2 rubber tamper bases ( that came with a Force Tamper ) to stop it sliding on the table. Can’t get it to slide at all now. Even with the weight removed it is still a wee bit heavier than the Vesuvius. I removed it lifting it any distance with the weight was not enjoyable. And yes I weighed it at 8kg
Viernes AFAIK there are only 2 machines in the world with these features. The other one is the Kees Van der Westen Slim Jim Idrocompresso, which shares the pressure gauge, timer, flush paddle and release paddle.
That’s very interesting and very I impressive too! I’ve learnt more about the Nurri from your posts than the Nurri website. Really appreciated tx @Viernes
Sorry, too late, but thank you for the wishes, Coyote :)
CoyoteOldMan Well… while the ACS machine has an 8 kg counterweight, the overall weight of both is similar, so there must be some additional weighting going on in the Nurri - the other components are pretty similar in size and weight, after all. Again, one plus point (group height clearance) which is missing from all published information; it “seems so” from the photos, but only a user (you) can confirm it.
There’s no ballast or counterweight in the Nurri. It weights what it weights because of the materials used. Also keep in mind that it has a big rotary pump
CoyoteOldMan In fact, from the photos, it seems to have 2 - but again, there is no information on what they measure. The one on the left is clearly group pressure. I assume the one on the right is for steam/service boiler pressure, considering the scale and the fact that it doesn’t seem to move when pulling a shot.
Left gauge - Group pressure
Right gauge - Steam pressure
CoyoteOldMan Where did you get this information and the rest, including the use of CAD to design the structure? Just to be clear, I’m not doubting your word; I’m just trying to find out as much info as I can, be it on English, Spanish, Italian, French, Dutch or German forums… or any other language! Google search is not my friend, in this case. Again - thanks for posting, this is very useful for me in the current “undecided” situation, but it’s also going to be useful to others researching the machine.
Information comes from Antonio Nurri itself. I did a lot of research and I asked Antonio a million questions before purchasing the machine.
Yes, google search is not your friend, nor mine in this case :) There’s no user information (until now), that’s why I went straight to the source.
I have another video. I suppose some of you have already seen it. But here it is.
Viernes I have another video.
Thank you. This is another use for the large rotary pump, I guess?
I hope you don’t mind another (I won’t say “a last”) question: how is the pre-infusion/pump pressure regulated? Do you need to open the machine and adjust a pressostat, or is it done through electronics?
Yes, it could be. But it’s only for fun and to see “what happens if….” :)
I set the pump pressure to 8 bar to see if it was possible to pull a shot like a regular pump machine… and it works. But you can imagine, that now then the preinfusion will be done at 8 bar :)
You regulate the pressure by adjusting the pump. Luckily there is a hole and there is no need to remove any panel.
btw, my machine comes with a rubber ring around the hole for a better finish.
Viernes I spent the first 17 seconds of the video wondering what the mysterious red material inside an espresso machine might have been… then I understood what I was seeing 🤣
Muchísimas gracias, señor
Potentially damaging confession:
I can’t help but contrast @Viernes “peppered Antonio with one million questions” to my “I see, I like, I buy” approach. 🤩
To be fair, I simply wanted to know that it was a La San Marco spring system and that it had stable temperature. Other than that it looks gorgeous.
Nevertheless I’m feeling assured that the machine passed the Viernes inquisition.
New YT videos I had not seen previously
This is getting more tempting by the day… 😁
What exactly is the difference between the grouphead used by the Evo Leva and the one used by Nurri? I hear the Evo Leva has some reports about leaking, water coming up and out of the top of the group.. problems with seals, trying to find one that works? Some people never completely solving these issues to absolute certainty? Is the difference in design of the Nurri such that this cannot/should not be an issue? Or is there any objective advantage to one or the other (aside from aesthetics)?
Hugonl37 Some users (including on this forum) report issues with the seal on the ACS. Known differences in the two groupheads are:
There is very little information on the Nurri group, other than it is a La San Marco-style with added heating cartridges (like the one on the ACS). It is possible that it is fundamentally similar to the ACS in other innovations/modifications (single rather than triple seal, extensive use of stainless steel, complex spring profile), but there is no information available. Reliability for any of this is obviously another unknown, considering the Nurri machine has only recently been released, and very few people have one.
I believe that the Nurri machine has a fully brass group (with no stainless steel liner like the ACS Evo).
Tjyven here’s a thread on the Streitman but not so much a comparison with the Decent (mis-rememebered I suspect) https://coffeetime.freeflarum.com/d/476-nurri-leva-sa?page=3
The Decent / Valexia post may be found here https://coffeesnobs.com.au/forum/equipment/brewing-equipment-extreme-machines-3000/886809-decent-de1xl-and-izzo-valexia-leva
Please feel free to ask any questions.
The “best” machine is of course relative to personal preference. My preferences have me leaning towards lever machines because of the more sensual (as in “senses”) experience of the espresso pour. However if I want to easily and accurately play with variables and see what happens, then the Decent is reigns supreme.
@tompoland - thanks for the write-ups. Not considering any of those machines at the moment, but still appreciate a well written review (and ideas about coffee).
I think the comments on the Strietman are here:
Tjyven Ah, we have all been there! Make a list of the features you want. For example if you think that it is important to be able to steam milk, but not all the time, then look for a dual boiler. If you think it is important to have PID control of the dual boilers then look for that. If you want a machine that heats up in 15 minutes using heat cartridges, look for that. The ACS Vesuvius Evo Leva ticks all those boxes
dfk41 The ACS Vesuvius Evo Leva and Nurri both look really good to me except I probably want something cheaper. I do like machines that are rather simple but still can manage temperatures rather well. I drink about 95% espresso so steaming is not a must. The Strietman looks really good I think and lately I been looking a lot at the “chinese Strietman” if you heard about that.
Tjyven I’m a 100% straight espresso drinker so steaming is not important and I have still have my E61 machine with steaming capabilities and I use that when guests are here (it is also faster to pump out back to back drinks than the Stietman).
That said, the most important thing for me in a Lever (after having a few) is group head temperature stability. For example, I like my Falir Signature Pro that I use for travel maybe four time a year but I would not want it for my home machine because flaffing around getting the group head to the right temperature is a bit of pain. Likewise the Portapresso I own. I am not a fan of the La Pavoni that I owned either because even thought the group head was heated the temperature was anything but stable, I really had to get it at the right time or manipultate it. And thats what I would be careful about if ordering a cheaper copy of the Strietman. I buy a lot from AliExpress so I’m not against cheaper Chinese copies as such, it’s just that when it comes to espresso machines “it’s complicated” as they say, to get so many important factors such as group head temperature accuracy and stability spot on.
tompoland I totally agree with you, having right temperature is essential. Also been using La Pavoni and even though I really like those machines getting right temperature is not easy.. However, I do think this “Chinese Strietman” is better than you probably think, even though there arent much information about it I know it is not some mass produced copy, it is actually one person who builds these machines by hand and it has a PID and I do think it is very temperature stable. As I said it is difficult to get information but Brian Quan has made a video:
I did not mean to hijack this Nurri thread and maybe this should be moved to a new thread.
Tjyven not sure if you have seen this thread https://www.home-barista.com/levers/jian-yi-lever-espresso-machine-t78667.html
Tjyven Is that really a surprise though!
