what model of portafilter pressure gauge did you end up getting? I'm thinking along the same lines.
On May 13, 9:15 am, Daniel Hagelin <[email protected]> wrote: > I agree with Ben but I'd like to relay a recent experience with brew > pressure. My shots started spewing all over the place and having ruled out > distribution and tamp I assumed it was due to excessive brew pressure. I > broke down and bought a portafilter pressure gauge and it showed that my brew > pressure was actually way too low. This conflicted with the reading on my > Brewtus's built-in gauge which read 2.5 bars higher. So I decided to trust > the portafilter gauge and tightened the OPV. The spraying went away and my > shots improved dramatically in every way. This was counter-intuitive to me > but I can't argue with success. > > On May 13, 2011, at 7:03 AM, Ben McCafferty wrote: > > > > > > > > > I've also had good luck with an infrared thermometer ($30, radio shack) > > since it reads as the water emerges and before it falls through the air. > > > Squirting, however, doesn't have much to do with temp > > On my experience. It's bad dose/distribution, and/or excessive brew > > pressure. Look up the Weiss technique, it helps a ton. > > > best, > > bmc > > > Sent from my C-Dory > > > On May 13, 2011, at 6:44, Kitt Johnson <[email protected]> wrote: > > >> No Steve, it isn't a very good way to check an absolute temperature (vs. a > >> relative one that was derived the same way. You want to measure the water > >> as it emerges from the group head. Short of $300+ of equipment (Fluke 52 > >> and a Scace), your best (imperfect) bet is to get a decent cooking > >> thermometer and some thick Styrofoam cups. Stab the thermo through the > >> upper lip of the cup so it extends half way across the cup. This will > >> position the probe directly into the falling water from the group at about > >> the same height as the face of the puck. Then run water across the probe. > > >> This technique will still lose some heat (~2 - 4 F), but less than any > >> thing else you can do cheaply. You can test it with boiling water. > >> (Also, be sure to calibrate the cooking thermometer by holding it in > >> boiling water.) > > >> -----Original Message----- From: StevieG. > >> Sent: Friday, May 13, 2011 8:55 AM > >> To: Brewtus > >> Subject: Re: One more time - with feeling... > > >> Hi folks - I have recently been bedeviled with the squirts, and am > >> working on my setup again. I generally use CC Toscano, but can't seem > >> to pull a good shot lately. This morning, I verified that a 7.7 > >> second run on my Macap doserless produces the CC recommended 19.5 > >> grams into a double basket. > > >> Next, I want to get to 198 degrees - I had my heat set at 95C, and ran > >> some hot water from the group head into a heated Bodum double wall > >> glass and measured the water temp with an instant read thermometer. > >> It was around 184F, much lower than a straight conversion of 203F > >> should have been. > > >> Is this a valid way to measure brew water temp, or should I be going > >> about this differently? > > >> Thanks much for comments! > > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "Brewtus" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group > >> athttp://groups.google.com/group/brewtus?hl=en. > > >> ----- > >> No virus found in this message. > >> Checked by AVG -www.avg.com > >> Version: 10.0.1375 / Virus Database: 1500/3633 - Release Date: 05/12/11 > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "Brewtus" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group > >> athttp://groups.google.com/group/brewtus?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "Brewtus" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group > > athttp://groups.google.com/group/brewtus?hl=en. -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/brewtus?hl=en.
