HomeRoast Digest


Topic: HX shot temps > RE: homeroast digest, Vol 1 #5654 - 4 msgs (82 lines)
1) From: miKe mcKoffee
I've never tried hearing the flash with a vibe HX so condolences.
Unfortunately the Thermofilter doesn't really help for actually pulling
shots, only in dialing in your procedure based on flash and counts with the
Thermofilter then applying the flash & count while pulling actual shots. But
since you can't hear the flash over the vibe there is a quite workable and
reliable and repeatable possible solution. Eric's E61 group adapter allows
you to monitor the temp for the shot itself. While for me it's no more
accurate than basing shots on listening for the flash and counting down, I
no longer have to listen for the flash and in your case would likely solve
your challenge. For me it was primarily a cool factor and convenience factor
when entertaining. I don't have to listen for the flash over conversations
etc.
Hmmm, if you can tell the end of flash that's really all you need to hear.
FWIW I found it helps holding a cup up to the group angled out reflecting
the sound towards me. End of flash and immediately pull shot will yield
~206f shot, higher temp than usually needed. Counting down one-one-thousand
from end of flush each count lowers shot temp approx' ~1f. So if you wanted
a 201f shot temp (common starting trial temp for about any espresso blend)
count five one-one-thousands down from end of flash and pull shot.
PID'ing an HX machine boiler will do zero for shot temp management unless
you dialed the temp down so low to be using like a single boiler machine. In
other words boiler temp way down around actual shot temps and then having to
up the boiler temp and wait to steam. Defeats the purpose of having HX
machine!
Kona Kurmudgeon miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
Sweet Maria's List - Searchable Archiveshttp://themeyers.org/HomeRoast/	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Clifton Burkett
	Sent: Wednesday, March 28, 2007 3:19 PM
	I recently purchased a a Scace ThermoFilter for my E61 group and a
Fluke logging TC thermometer. I will start a log of what temps I like the
shots pulled at. I have been reading a bit on beans sites and only a few
roasters mention what their intended extraction temps are. My skills require
a lot of work to get good repeatability. especially at 5 a.m. before going
on my early morning walk with my dog. 
	I have seen a range of 91C to 96C mentioned in a few articles on
home-barista.com and on coffeegeek which is a much wider range than I would
have thought. One of my favorites blends back when I had my Solis superauto
I could never get right in the Giotto and simply gave up on it when I gave
the Solis away to a friend for their 60th birthday. Big temp difference
between the two machines. Solis is much cooler brew temp. I may try the
blend again not that I know that not all beans want the same temp. I am
getting nowhere near your level of constancy except right at the end of the
flash point. Hard for me to hear over the vibe pump. I have to just watch
for the steam to stop which is not as accurate it would seem as that
combined with the sound. I may look at retrofitting with a rotary pump to
quiet things down a bit. Only problem is I have only saw one on retrofit on
the web for the Giotto which was removing the 41 watt urka and replacing it
with a 1/3 horse power procom
  - a
bit excessive... 
	Wish I could put a PID on my HX so I could make for easier
repeatability, but not as easy on an HX machine.
		Clif - SomeWhere in Florida
	with Rocky the Cardi and Garfield the Tabby
	Odie PWC at the Bridge 01/18/2006
http://www.freewebs.com/aesk/inmemoriam.htm


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