Nurri Leva S.A.

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 Is that really a surprise though!

dfk41 I guess not!

Viernes The Nurri also responds well to keep stable the desired temperature. At least in my experience

If you mean stable throughout the shot (as opposed to between shots), I thought one of the advantages of a traditional spring lever machine was meant to be that the brew water temperature (as well as the piston pressure) declined throughout the shot.

Suppose it depends

There’s the declining pressure profile and then there’s the temp declining too, I know this can go as much as 4-5 degrees swing.

DavecUK It comes from the fact that on large spring leavers, the big group acts as a heat sink. As a matter of taste preference, I’ve often seen it praised.

On another forum, John Buckman of Decent espresso machines, recently said: ’The “Adaptive” profile that is my daily … does this temperature drop as part of the program. It’s currently the “most popular profile” on https://visualizer.coffee/ I have it set to drop 5C on my profile, but you can set it to be whatever you like.'

Asked what he thinks is the advantage of a temperature declining profile, he replied: ’I’d say the taste is “smoother, less harshness”.'

Obviously, the phenomenon is not recent, as it happens automatically in lever machines that don’t have something like cartridge heaters to keep the group temperature in balance with the brew water in the cylinder.

As to when it was positively credited with helping to give lever shots their characteristic flavour, I feel as though I read it first many years ago (but I couldn’t say where).

I know where Dave is coming from because big levers have been praised for their temp stability….

I like it to this new Weber portafilter that seems to channel. App visual channeling on the bottom of baskets is a good thing now

mathof2 As to when it was positively credited with helping to give lever shots their characteristic flavour, I feel as though I read it first many years ago (but I couldn’t say where).

Probably on CFUK back in 2012/13

tompoland hello tompoland, have you or any of the other people on this thread who ordered the nurri l-type received their units yet? As a fan of LSM type spring levers (of which there are never enough of), I am eager to hear how your experiences have been like with this very interesting machine.

That’s a shame on the delay, it’s happening alot atm,

tompoland has a prototype on his bench.

I had an early production model, but I returned that months ago, as soon as I finished the engineering review.

I don’t know how much of what I recommended will be changed, or implemented.

The same with the GTO, I returned it as soon as the engineering review was completed.