www.wholelattelove.com: our caffeinated commitment to you

Adjusting temp on 'new' La Pavoni Pro

Postby hipponax on Wed Jul 05, 2006 10:01 pm

Hi-- I got one of the newer La Pavoni Professional machines not too long ago, the kind with the larger grouphead. It's true that they've addressed some of the temperature problems in the older designs. but my machine seems to go too far: the shots are just not quite hot enough; close, but not quite there. I was wondering if there's a way to adjust the temperature. I had a look under the bottom, but didn't see anything that looked obvious, though perhaps something on pressurestat can be turned. I didn't want to disassemble anything until I knew what I was doing! Thanks for any advice...

Ralph
hipponax
 
Posts: 17
Joined: Mar 06, 2006
Location: Philadelphia, PA

Postby hbuchtel on Thu Jul 06, 2006 1:47 am

hipponax wrote: ( . . .) but my machine seems to go too far: the shots are just not quite hot enough; close, but not quite there. ( . . . )


No advice, just questions :)

Usually if you pull a succession of shots on a Pavoni each one will be a little bit hotter, is this not happening for you?

Does your model have a pressure gauge?

Henry
LMWDP #53
User avatar
hbuchtel
 
Posts: 746
Joined: Jun 22, 2005
Location: Changsha, Hunan (or A2, MI, USA)

Postby hipponax on Thu Jul 06, 2006 8:11 am

hbuchtel wrote:No advice, just questions :)

Usually if you pull a succession of shots on a Pavoni each one will be a little bit hotter, is this not happening for you?

Does your model have a pressure gauge?

Henry



Yes, there's a pressure gauge. The machine seems to be set in the range from .65 to .85. Temperature reading on water without coffee coming through the portafilter is in the low 190's (highest reading was 195, usually it's a bit lower). I haven't noticed much heating up in successive shots, though, in fact, I haven't pulled more than 2 or 3 in a row yet. Maybe these settings are appropriate, and I need to be more attentive to warming the cup up, though I've consistently noticed that these shots are cooler than those on my other machines (Cremina and Elektra).

Ralph
hipponax
 
Posts: 17
Joined: Mar 06, 2006
Location: Philadelphia, PA

Postby kbuzbee on Fri Jul 07, 2006 9:23 am

Hi Ralph, you didn't mention whether you're bleeding off pressure (through the wand) before pulling a shot.... Sometimes a false pressure will cause the pressurestat to cut off too low.

Just a thought.

Ken
LMWDP #054
kbuzbee
 
Posts: 135
Joined: Jan 09, 2006
Location: Mentor, Ohio USA

Postby hipponax on Fri Jul 07, 2006 9:31 am

kbuzbee wrote:Hi Ralph, you didn't mention whether you're bleeding off pressure (through the wand) before pulling a shot.... Sometimes a false pressure will cause the pressurestat to cut off too low.

Just a thought.

Ken


Actually, I haven't been. Good point. I'll try it and see if it makes a difference. Thanks.

Ralph
hipponax
 
Posts: 17
Joined: Mar 06, 2006
Location: Philadelphia, PA

Postby bobby yarrow on Sat Jul 08, 2006 7:29 am

I'm kind of a numbskull, and it took me a while to realize that there was no difference between pressure and temp with my europiccola; all the pressure is obtained from the heat of the water, yeah?

I have a 20+ year old machine, and it will surely burn the shot if I try and pull more than 3 or so in a row. Oddly, I can easily burn a shot AND have it too cold in the cup.

I'm not sure I understand why, but I definitely find getting a hot shot from the europiccola to be an issue. I THINK it has to do with pull time. The more I work with the europiccola, the more apparent it is that the machine is built to pull short, non-ristretto shots -- 15 second pulls, not 35 or whatever. The down-side is that I like a denser shot, which requires a finer grind and longer pull. And even with a preheated machine and a hot cup and a full bar of pressure, I find that my 40-second pulls are too cold.
Man you ought to hear her with the siren on . . .
bobby yarrow
 
Posts: 48
Joined: Apr 03, 2006
Location: NJ, USA

Postby kbuzbee on Sat Jul 08, 2006 9:13 am

bobby yarrow wrote:I'm kind of a numbskull, and it took me a while to realize that there was no difference between pressure and temp with my europiccola; all the pressure is obtained from the heat of the water, yeah?


The .9 bar comes from the heat produced steam, yes. That get's the water into the group. The rest of the pressure (for the pull) comes from you.

Ken
LMWDP #054
kbuzbee
 
Posts: 135
Joined: Jan 09, 2006
Location: Mentor, Ohio USA


Return to Lever Espresso Machines