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Portafilter Temperature Gauge Aluminum or Paper towels?
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shadowsnuzzy
Senior Member


Joined: 8 Jan 2011
Posts: 70
Location: Pleasanton
Expertise: Just starting

Posted Sat Apr 20, 2013, 6:38pm
Subject: Portafilter Temperature Gauge Aluminum or Paper towels?
 

I just upgraded to an Andreja and wanted to figure out the flush cycle on my machine to best bring the group head to 201 degrees. I saw a video where a guy connected a $13 temperature gauge's wire through the inside of the portafilter then stuffed it with paper towels to "hold" the water in place longer. I also read somewhere else that it's better to fill the makeshift temperature gauge portafilter with Aluminum foil. What do you guys think?

Do you know any other ways to accurately measure the temperature of the group head for under $30?
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D4F
Senior Member


Joined: 15 Mar 2012
Posts: 2,038
Location: USA
Expertise: I like coffee

Espresso: Gaggia Classic PID
Grinder: Baratza Forte-AP
Posted Sat Apr 20, 2013, 6:58pm
Subject: Re: Portafilter Temperature Gauge Aluminum or Paper towels?
 

The best fix is probably an inexpensive digital thermometer and then the more expensive device.

Click Here (espresso.colinloh.com)

I tried a few ways here

http://coffeegeek.com/forums/espresso/machinemods/588424

The crinkled aluminum foil actually works ok but is messy.  It traps air in the crinkles and has little thermal mass.  The inexpensive digital thermometers are thermistor based and have to be isolated from the water, where some put k thermocouples directly in the water.  You may well use/lose a basket in the process.  You can get inexpensive k thermocouples from ebay and use them "over the lip" of the basket/pf.  Of course you need a reader, but those are very cheap and inexpensive on ebay and other sources.

You also need to control flow :)

Under $30

Click Here (www.ebay.com)

 
D4F also at
http://www.gaggiausersgroup.com/
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daduck748
Senior Member


Joined: 13 Dec 2012
Posts: 157
Location: California, USA
Expertise: Just starting

Espresso: Gaggia Classic (2012)
Grinder: Breville BMF600XL
Posted Wed Apr 24, 2013, 5:36pm
Subject: Re: Portafilter Temperature Gauge Aluminum or Paper towels?
 

Wow, that is cheap!  My Fluke meter cost me over $200!  Then again, I use it for work mostly.

I still like my Fluke, but for $22, you can't complain.

 
Gaggia Classic
Breville BMF600XL
Ducati Hypersport 748r
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