My screw looks like it's metal, and is located on the front of the machine, lower right corner, once you've removed the drip tray. Sound right? I do tamp to 30lbs. I'll use the blind PF to set the pressure, thanks for that info!
On Wed, Jan 28, 2009 at 5:46 PM, BinBakinBeans <murray.zaha...@gmail.com>wrote: > > Which version of Brewtus? > The first had a teflon screw on the opv valve that became problematic > after adjusting the pressure. > The first of the BII had teflon as well. They were later switched to > an opv with a brass adjusting screw. I replaced mine with one of these > after I had problems with my original teflon screw opv on my BII. > Strangely enough, Expobar has again gone back to using an opv with a > teflon screw on the new BIII machines. > I would say go ahead and adjust it, especially if it is a brass > screw. If it is teflon, be prepared to "possibly" have some future > problems with it. Not a big deal to change it out if you do. > Use the blind filter in the portafilter to get it down to about 8.5 to > 9 on the guage. > Check again when you actually pull a shot that it is around 8.5. I > will assume that you will have properly tamped to about 30 pounds. > > > On Jan 25, 12:27 pm, Chris Bailey <chris.bai...@gmail.com> wrote: > > I've seen a fair bit of talk on the list about adjusting pressure. Given > > the fact that there's tape over the pressure adjust screw on my machine, > and > > all the warnings about don't touch it, only let the factory do it, etc, > > etc., I'm leery of messing with it. Also, my understanding is that > > supposedly the factory has pulled shots and checked the pressure and set > it > > properly. > > But, I've just wondered about it. My pressure gauge typically reads > about > > 11 bar when I'm pulling shots. I'm unclear on whether it's supposed to > read > > the true 8.5-9 bar that an espresso should be done at, or whether the > gauge > > is a pressure at a different point in the system and thus the real > pressure > > at the PF is lower, or not. > > > > Can folks discuss this a bit? Other than taste, are there ways for me to > > know whether my machine is set right or not, and/or if I'm going to > adjust > > it (and potentially void my warranty?) how can I know when I've set it to > > the right spot? From the reading I've done I think I understand that too > > much pressure can actually cause a build up and not get things flowing > > properly (which seems a bit backwards, but I sort of understand). > > > > Anyway, let me know what folks think. > > > > -- > > Chris Bailey > > chris.bai...@gmail.com > > > -- Chris Bailey chris.bai...@gmail.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to brewtus@googlegroups.com To unsubscribe from this group, send email to brewtus+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/brewtus?hl=en -~----------~----~----~----~------~----~------~--~---
