No worries.  Got that tip from this same forum a long time ago.  Don't recall 
who the original author was.  Works great though...

I'm sure your masterful hand was aided only by the cleanliness of your machine, 
not by coincidence...  :)

talk soon,
bmc

On Apr 2, 2011, at 10:52 AM, Dan Hagelin wrote:

> Ben,
> 
> Thanks for that great tip on holding the Calfiza backflush.  I let it sit for 
> a few minutes and then rinsed the heck out of it.  I then pulled a noticeably 
> cleaner shot - one of my best ever!  It was my fifth espresso of the morning 
> so I left it at that.  I hope I don't find tomorrow that it was only a 
> coincidence!
> 
> Dan
> 
> 
> On Apr 1, 2011, at 12:59 PM, Ben McCafferty wrote:
> 
>> Hi Cindy,
>> I agree with everything so far.  Another tip when backflushing with 
>> Cafiza--backflush once, then build pressure again, and then pull the lever 
>> only to its middle position, not all the way down.  This keeps pressure on 
>> the group, but lets the pump stop running.  You can let the Cafiza soak in 
>> there for as long as you like/need, then keep backflushing with water to 
>> clear it out.  I also find it helps to pull the blind PF out and rinse it, 
>> then reinsert, to help clear the Cafiza quicker.
>> 
>> A very basic question--how old are your beans?
>> 
>> bmc
>> 
>> On Apr 01, 2011, at 12:04 PM, Dan Hagelin <[email protected]> wrote:
>> 
>>> Cindy,
>>> 
>>> With some coffees I've set the PID as low as 193. Try setting it 
>>> progressively lower until the espresso starts to taste sour then bring it 
>>> back up a bit. I don't know if my PID is accurately calibrated so I don't 
>>> know if I'm really brewing at 193. Oh for a Scace thermofilter! What I do 
>>> know is that the temperature is consistent so I've learned to just trust my 
>>> palate.
>>> 
>>> Dan
>>> 
>>> 
>>> On Apr 1, 2011, at 11:20 AM, Cindy Goddard wrote:
>>> 
>>> > Kitt, I have changed temperatures a few times. Seems to taste the
>>> > same no matter where I adjust the PID. I've gone from 197 to 201. I
>>> > may need to get a instant read thermometer to see what the brew temp
>>> > may really be. I have a untrained palette when it comes to the taste
>>> > of espresso, so it maybe something that I will adjust to.
>>> > 
>>> > Cindy
>>> > 
>>> > 
>>> > 
>>> > On Mar 31, 7:46 pm, "Kitt Johnson" <[email protected]> wrote:
>>> >> Cindy, If he coffee has a lingering, bitter after-taste, sometimes it is 
>>> >> an
>>> >> indication that the temperature is set just a little too high for that
>>> >> particular blend. Try backing the temperature down by about 2 degrees and
>>> >> see if it gets better. You can play with he temperature and taste your 
>>> >> way
>>> >> to what is right for your beans. If it begins to taste "sour", then you
>>> >> have gone a little too cool.
>>> >> 
>>> >> 
>>> >> 
>>> >> 
>>> >> 
>>> >> 
>>> >> 
>>> >> ----- Original Message -----
>>> >> From: "Cindy Goddard" <[email protected]>
>>> >> 
>>> >>> ... my shots have
>>> >>> gotten a lot better. Seems though, that they all taste a little
>>> >>> bitter,
>>> > 
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