Temperature Control without PID: THE MAP for your Gaggia Classic!

I this video, I show how to control the temperature in your espresso machine without a PID.

Surfing the temperature is trying to understand the temperature fluctuation in your machine and start brewing in the optimal point for that bean.

However, you need to map the temperatures to do that. And many people use the temperature in the boiler. But I measured the temperature in the puck for a Gaggia Classic, I show how you can do it in any machine, or if you have a Gaggia Classic, just use my numbers as a reference.

Surfing will not be as precise as having a PID, but it's an extra hack to improve your cup if you don't have one.

In this test, I left the machine heating for 30 min with the portafilter locked in the group, prepared a puck as if I was making a regular espresso, brewed circa 40g in 25s, measuring the temperature with a thermocouple type K in the puck and a cheap thermometer from Aliexpress. Despite the cheap device, it has been consistent in my experiments in the last 3 years.

Thermometer and thermocouple that I used in this video:
https://s.click.aliexpress.com/e/_DB5viZZ (Aliexpress)
https://geni.us/LYIOC (Amazon)

Playlist: 3 main mods for your espresso machine, including PID, Theory and Practice:
https://www.youtube.com/playlist?list=PLFUoLixnoUxz8I_iRgiq2j2knyLHQe1Wq

And if you want to prefer written tutorials, check also my website:
https://espressohackers.com/

If you want to support the channel, you can buy me a coffee:
https://www.buymeacoffee.com/espressohackers