Can anyone recommend an inexpensive way to rent/buy a device to accurately measure brew water temp in the portafilter? A digital display would be fine and logging the temps to a laptop would be better.
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Brew temp measurement
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That's easy to answer.
HeatSnob!
CoffeeSnobs - BeanBay - Other Stuff - HeatSnob Temperature Data Logger
...with a bead probe...
CoffeeSnobs - BeanBay - Other Stuff - Spare Thermocouple Bead
You can set the temperature scale and time to suit, see it live and save/log it too.
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You can get a digital thermometer that goes into an e61 group where the little nut is on the front. Temperature should be pretty close to portafilter temp +-a couple of degrees. Easy non destructive way to get an accurate temp and still be able to pull shots.
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Well...
Given that this procedure isn't required to be done every day, why not just feed a "Bead Thermocouple" on to the top of a coffee puck just before you lock the Group Handle in place. Connect the other end to your Heatsnob or Datalogger DMM and Bob's your uncle. Record the results using the method described by Andy above for future reference...
No need to modify or butcher a Group Handle, unless you're an Espresso Tech. who like to tinker and DIY...
Mal.
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Do you mean squash the thermocouple cable between the machine's gasket and the basket/portafilter?Originally posted by Dimal View Postwhy not just feed a "Bead Thermocouple" on to the top of a coffee puck just before you lock the Group Handle in place.
I think the idea is to log the temp and any variation during a brew/pour with the water under pressure.
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Indeed I do...Originally posted by toorakwa View PostDo you mean squash the thermocouple cable between the machine's gasket and the basket/portafilter?
I think the idea is to log the temp and any variation during a brew/pour with the water under pressure.
Been doing it this way for many years. Might have to cinch the Group Handle up a little more, but not much. Even easier with the Silicone Gasket I bought from Andy - More give in it...
Mal.
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