Green Coffee Buying Club

Coffee Discussion boards => Hardware & Equipment => Topic started by: EricBNC on October 09, 2011, 02:23:39 PM

Title: One down, one to go - Gaggia OPV adjustment
Post by: EricBNC on October 09, 2011, 02:23:39 PM
I found time to play around with adjusting the OPV on a Gaggia Classic using my Silvano as a benchmark.  A perfect method? probably not.  Pretty close? Taste does not lie - same beans, dose, and grind produced similar tastes and near identical flow patterns.  I think the Classic is dialed now. 

Here is what some Velton's Bonsai Blend looks like (ignore the dirty glass - it was working overtime this afternoon):

A little tight using my LaPavoni PBC sample grinder:

(http://i54.tinypic.com/s3k3rp.jpg)

Loosened up a bit - was Guinness while pulling - by the time I got my camera out again it had settled a bit:

(http://i52.tinypic.com/hukpqg.jpg)

It ran blond at the very end - look at that blight on an otherwise perfectly flecked crema top:

(http://i54.tinypic.com/27zawid.jpg)