A Gaggia Classic with a PID temperature controller on a home workbench

Guides & Articles

Hands-on guides, mod walkthroughs and reference articles for the Gaggia Classic family and beyond — written, photographed and tested on real machines.

Gaggia Classic style machine used to explain E24 brass boiler and PID temperature control
Coffee Theory Gaggia Classic Pro Gaggia Classic Pro قائمة التحقق للجرعة الأولى

Does the Gaggia Classic E24 Still Need a PID?

The E24 has a brass boiler. Your shots still wander. Before buying a PID, separate stability from control.

مايو 3, 2026 Read More
PID-equipped espresso machine with a visible temperature display and pressure gauge
Coffee Theory Gaggia Classic Pro Gaggia Classic Pro قائمة التحقق للجرعة الأولى

قرار

Your Gaggia makes one good shot. Then it acts shy the next morning.

أبريل 28, 2026 Read More
Coffee beans with a thermometer, used to explain temperature stability in espresso brewing
Coffee Theory Gaggia Classic Pro

ضغط

You changed the grind. The cup still moved. Annoying little espresso plot twist.

أبريل 28, 2026 Read More