So I'm having some difficulty in fine tuning my roasts.
I use a corretto with a Bosch PHG 630 DCE.
About a month ago, something changed and the roasts appear harsher.
What has changed during the roasting process is when I reach about 130 deg., the ROR is hard to control.
In the attached jpeg, from 130 deg. right up to first crack, the gun temperature was constant. the ROR fluctuated from about 5 to 9 deg, and I could not get it above that. (I think I had the gun set at a constant 400) As you can see from the blue line, it's a regular fluctuation. I have studied my old roast profiles and the ROR line is generally smooth.
Raising the temperature on the gun doesn't seem to help.
So I'm wondering if I have a problem with the gun. Is it the thermostat that is malfunctioning?
Has anyone else had a similar experience?
I use a corretto with a Bosch PHG 630 DCE.
About a month ago, something changed and the roasts appear harsher.
What has changed during the roasting process is when I reach about 130 deg., the ROR is hard to control.
In the attached jpeg, from 130 deg. right up to first crack, the gun temperature was constant. the ROR fluctuated from about 5 to 9 deg, and I could not get it above that. (I think I had the gun set at a constant 400) As you can see from the blue line, it's a regular fluctuation. I have studied my old roast profiles and the ROR line is generally smooth.
Raising the temperature on the gun doesn't seem to help.
So I'm wondering if I have a problem with the gun. Is it the thermostat that is malfunctioning?
Has anyone else had a similar experience?
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