A PID setpoint is not the stock 107 °C brew thermostat. That snap-disc cuts the element. A PID holds a number you type. The ranking Home-Barista thread is “PID temperature setting for Gaggia Classic.” HomeBaristaMods’ kit is $169 and is a Gaggia Classic Pro part, not a Silvia board. The digits on the display are boiler temperature, not the temperature in the cup.
Preheat still takes minutes. That wait is how long to preheat a Classic.
The ranking thread is a setpoint argument
Organic #1 is owners picking a brew number and an offset. Stock machines do not have that menu. They have a 107 °C brew stat and a 145 °C steam stat (thermostat kit). Typing 107 into a PID does not recreate the snap-disc.
| 宣称 | 真实 | 出处 | 差在哪 |
|---|---|---|---|
| Set the PID to 107 °C | 107 °C is the stock snap, not a brew recipe | Thermostat kit | Cut-off vs setpoint |
| The display is the cup | The probe reads the boiler | Home-Barista #1 | Metal vs puck |
| Any PID kit | HBM’s kit is $169 and listed for Gaggia Classic Pro | PID kit | Chassis |
What the kit actually holds
Once the machine is hot, the controller holds the brew number you chose. It does not skip the cold-start wait, and it does not set steam. Steam on a single boiler is still a climb toward the steam circuit. That wait is brew then steam.
A Silvia still wants its own PID conversation. This $169 box does not bolt on there.
Offset is the rest of the question
People chase sour or bitter shots by moving the setpoint a degree or two because the group lags the boiler. That is an offset problem, not a new OPV. Pressure is the $19 spring kit. Do not “fix” a harsh shot by typing a lower brew number if the pump is still at the stock ceiling.
Frequently Asked Questions
What temperature should you set on a Gaggia Classic PID?
Set a brew setpoint, then adjust a small offset if the group runs cooler than the display. Do not copy the stock 107 °C snap into the menu and call it done.
Is the PID number the temperature in the cup?
No. It is the temperature at the sensor on the boiler. The puck sees the group.
Does the $169 kit work on a Rancilio Silvia?
No. It is listed for Gaggia Classic Pro.
Does a PID replace the 145 °C steam thermostat?
No. Steam is still the high side of a single boiler. The PID conversation here is brew.
Should I change the OPV instead of the setpoint?
If shots are harsh from pressure, that is the OPV spring. If the first shot is sour and the second is fine, start with heat, not bar.
PID kits: PID kits.