Re: PLEASE HELP ME DECIDE..
pravspresso,
You cant measure the temperature with the probe just below the PF..... it needs to be in the PF (ideally sitting on top of the puck)..... and there are special devices to do that.... The rate of flow must also be correct 30ml in 30 sec.... or the temperature will be lower (water doesnt spend long enough in the HX)
The only (relatively inaccurate) method to do it without the special PF is to use a foam cup with the probe in the bottom of it.... held right up into the group assembly where the PF would go..... and that will also generally indicate lower temperature as well due to the flow rate being too high (and if the water falls through air at all the temperature will also drop).
I think the error is more likely caused by technique used to measure rather than an actual machine fault....
The proof is in the cup - does the espresso produced taste sour?.... if not the temperature is probably OK.
pravspresso,
You cant measure the temperature with the probe just below the PF..... it needs to be in the PF (ideally sitting on top of the puck)..... and there are special devices to do that.... The rate of flow must also be correct 30ml in 30 sec.... or the temperature will be lower (water doesnt spend long enough in the HX)
The only (relatively inaccurate) method to do it without the special PF is to use a foam cup with the probe in the bottom of it.... held right up into the group assembly where the PF would go..... and that will also generally indicate lower temperature as well due to the flow rate being too high (and if the water falls through air at all the temperature will also drop).
I think the error is more likely caused by technique used to measure rather than an actual machine fault....
The proof is in the cup - does the espresso produced taste sour?.... if not the temperature is probably OK.

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