Preinfusion

S1 Video Forum
Post Reply
Niko

Preinfusion

Post by Niko » Sun Jul 20, 2008 8:09 pm

Here's a clip showing preinfusion set for 6 seconds @ 40psi.

http://www.youtube.com/watch?v=tTWTntowF8I

The coffee is a single farm (to be named later :D ) after I create the perfect roast profile on the Hottop.
The shot in this particular clip almost floored me and I almost didn't live to tell about it...
it was THAT GOOD.
This bean was roasted until the first audible second crack and then stopped immediately.

User avatar
PBL
Espresso
Posts: 52
Joined: Thu Dec 27, 2007 5:40 pm
Location: Montreal

Re: Preinfusion

Post by PBL » Tue Jul 22, 2008 8:35 pm

Nice video, seems to be very effective. The esprosso shot looks marvelous. Thanks Nilo. :D
Vivaldi S1 and my buddy Rocky

coffeeowl
Barista
Posts: 307
Joined: Fri Oct 05, 2007 3:51 pm
Location: Lodz Poland

Re: Preinfusion

Post by coffeeowl » Thu Jul 24, 2008 1:55 pm

mmm this silence after the click sounds intriguing... :) :wink: :D
Pawel

_________________
La Peppina
Arrarex Caravel
La Spaziale Vivaldi II
Mazzer Mini
KyM

___________________
'a a ha sha sa ma! Image

User avatar
JohnB
Vivaldi Dreamer
Posts: 2249
Joined: Sat Dec 29, 2007 12:01 pm
Location: Northeastern Ct.

Re: Preinfusion

Post by JohnB » Thu Jul 24, 2008 5:20 pm

coffeeowl wrote:mmm this silence after the click sounds intriguing... :) :wink: :D

Especially when no water comes out for several seconds!. I've noticed that the p/i needs to be primed by the first flush of the day. After the 1st one the water comes out immediately after the click but there is a delay of several seconds the first time. Even after a 2-3 hour idle period there will be a 2-3 second delay before you get any water on the 1st flush.
Speedster/Bosco Sorrento/ K10WBC/K30/Bunnzilla
KvdW/Pullman/RB Tampers
Hario NCA 3 & 5s/Wooden Neck Dripper/Buono
Zassenhaus Knee Mill
Modded Hottop B

User avatar
chas
Vivaldi Dreamer
Posts: 2833
Joined: Wed Jun 02, 2004 11:52 pm
Location: Central Maryland
Contact:

Re: Preinfusion

Post by chas » Thu Jul 24, 2008 5:39 pm

Since everyone should be doing one or two warming flushes anyway, this shouldn't add any extra steps.
Chas
LM GS/3 & LaSpaziale Dream v 1.23 (US 120V)
Mazzer Kony E, Customized Rocky
Hottop P/B

boldstep

Re: Preinfusion

Post by boldstep » Thu Jul 24, 2008 7:46 pm

Great video Niko! Thanks for posting it.
A few questions as I start reading through all these p/i threads :read2: and jumping on the p/i bandwagon :
(1) Do you count the 6 seconds in your total extraction time? I did notice you started the timer *after* p/i finished...
(2) When you use 40 psi, I would assume that your group head pressure is also a effected, right? Or are you adjusting those independently somehow?
(3) Have you played around with different line pressures and found 40psi to be the tastiest?

Dan Bollinger

Re: Preinfusion

Post by Dan Bollinger » Wed Jun 05, 2013 6:48 pm

I've noticed that water doesn't begin to flow immediately if the machine has been idle for a while, probably because the water has evaporated. I'm not in the habit of hitting the double-dose button while I'm grinding the first cup of the say so that when I pull that first shot the puck gets preinfused without delay.

Post Reply

Return to “Vivaldi Video Villa”