Cutaway of La Marzocco saturated grouphead - Page 3

[cannonfodder]

Barry, how did your preheat testing work out?

Maddie says "no chips, want more matto's"

[barry]

Barry, how did your preheat testing work out?

i tested it briefly with the scace in march, and the initial results suggest it is pointless.

a few days ago, i hooked up the marzocco again (after about a month of disconnect), and i hope to re-test the pre-heat this coming week (if maddie will let me). i've got a 5lb bag of stale decaf that i can use for testing, and i'll do "real shot" temp measurements with the datalogger.

[cannonfodder]

Interesting. I had added a short HX preheat to my little Isomac and it did appear to make a difference. I had to change my flush routine; it appears to work better with many short flushes vs. one long. But my little 1.5 liter HX pales in comparison to something like a LM. That is also a perceived cup change, I don't have a data logger, maybe one day, but for now my measurements are quite literally cheek and tongue.