Gaggia Classic UP Review: Expert Analysis

The Gaggia Classic has been the "first real espresso machine" for a generation of home baristas. The new Classic UP keeps the look and the 58 mm portafilter, then adds the features owners used to chase with mods: PID temperature control, a pressure gauge and automatic pre-infusion.

Here is what is new, what stays the same, and how it stacks up against the Gaggia Classic Pro E24, the Profitec Go and the Quick Mill Pop-up.

What is new on the Classic UP

Dual PID temperature control. The UP controls both brew and steam temperature, and a colour display shows the set and measured brew temperature. Instead of guessing or temperature surfing, you set the number you want.

Automatic Low-Flow Pre-Infusion in 3 Levels

Automatic pre-infusion is optional and has to be enabled in the menu. Once it is on, the machine runs it for you on every shot in two phases: a low-flow wetting phase (reported at about 3 g per second), then a soak phase before the pump runs at the normal flow rate. Choose Min, Med or Max, or leave it off.

• Min (2 sec active, 1 sec soak): wets just the top of the puck to help prevent channeling. A light touch, and a good starting point for darker or older roasts.
• Med (8 sec active, 3 sec soak): saturates smaller doses all the way through. A good match when you pull a smaller dose.
• Max (12 sec active, 3 sec soak): fully saturates a double-shot basket. Best suited to fresh, lighter roasts, which are denser and hold more CO2. Full saturation is reported to dramatically reduce excess acidity and brightness.

A simplified illustration of how the Min, Med and Max levels differ. Not a measured pressure trace.

The display shows the pre-infusion stage and your shot time while it brews.

What each stage is for

• 1. Low-flow wetting: water enters the puck slowly (reported at about 3 g per second), so dry coffee wets evenly instead of being pushed through. This helps prevent channeling.
• 2. Soak: the pump pauses while the solenoid valve stays open, so the water settles into the puck. Fresh coffee releases trapped CO2, much like the bloom in pour-over.
• 3. Full brew: the pump runs at the normal flow rate for the rest of the shot. Because the puck is already wet and settled, extraction can be more even.

Best practice

• Turn pre-infusion on in the menu, start with the level that matches your dose and roast, and change one thing at a time so you can taste the difference.
• The display shows your pre-infusion time and your shot time separately, which makes it easy to compare shots.
• If you use PRESET auto-stop, save the shot time again after you change the pre-infusion level or switch to a new bag of beans.

Fully automatic, with no lever to hold

The pre-infusion is automatic. Pick a level once and the Classic UP handles the gentle wetting and the soak on every shot, with no lever to hold, no valve to time and no pressure to judge by eye. That means every shot gets the same soft start, whoever is pulling it and however busy the morning is. Manual pre-infusion depends on repeating the same movement each time, and automatic pre-infusion takes that guesswork away.

Why it exists

Water takes the easiest path through a dry puck. Wetting it slowly and letting it rest first gives the coffee time to saturate and degas, so the full-pressure part of the shot meets an even puck instead of finding weak spots.

Pre-Tuned 9 Bar Brew Pressure (OPV)

The Classic UP uses a 15 bar pump, but brew pressure at the group head is held at a fixed 9 bar, the traditional Italian espresso standard. That limit is set by the OPV (over-pressure valve), and on the UP it comes pre-tuned from the factory. You do not need to open the machine or adjust anything. A steady 9 bar at the group head helps prevent over-extraction.

This is a big improvement from earlier Gaggia Classics. Some previous machines were set higher out of the box, at roughly 11 to 13 bar, which is why many owners adjusted the OPV or modified their machines to bring pressure back to 9 bar. Gaggia addressed this on the UP.

There is a longevity benefit too. Higher pressure puts constant strain on seals, fittings and other parts, which over time can lead to leaks. At HCS, we think a pre-tuned 9 bar design is the better design for long-term reliability.

Analogue pressure gauge. Gaggia's manual lists a pressure gauge on the front of the machine, so you can watch each shot's pressure as it builds.

Shot timer with PRESET. Pull a shot, save the time, and the machine can stop at that time automatically for repeatable shots.

Wake-up timer and auto standby. Set the machine to be ready in 15 minute steps. Standby switches it off after 30 minutes by default, and that can be changed.

Bigger baskets. The UP ships with commercial 11 g single and 18 g double baskets, compared with 6.5 g and 14 g on the E24, plus a backflush disc. More coffee in the basket makes it easier to dial in modern espresso recipes.

Colour display with capacitive touch buttons. Easier to navigate than the two-button controllers on many PID machines, plus three toggle switches that recognise long presses.

What stays the same

• A commercial-size 58 mm stainless steel portafilter
• A lead-free brass boiler and a fixed 9 bar brew pressure, pre-tuned at the OPV
• A stainless steel body with the classic three-switch layout
• A built-in cup warmer and an articulating steam wand that also dispenses hot water
• A 2.1 L removable tank
• Made in Italy

What is in the box

58 mm portafilter, single (up to 11 g), double (up to 18 g) and blind filters, stainless steel tamper, and two drip trays (a classic tray and a low tray with a telescopic drain pipe).

How Does the Gaggia Classic UP Compare?

See how the Gaggia Classic UP lines up against three popular alternatives: the Gaggia Classic Pro E24, which sits below it on price, the Quick Mill Pop-up, which sits right alongside it, and the Profitec Go, which sits above it.

Gaggia Classic UP vs Gaggia Classic Pro E24 vs Profitec Go

Who the Classic UP is for

The Classic UP is a single boiler espresso machine that comes with the full package. Dual PID holds your brew and steam temperature, automatic low-flow pre-infusion wets the puck gently, and an analogue gauge shows every shot as it happens. Add PRESET auto-stop, a wake-up timer, a cup warmer and a commercial 58 mm portafilter, and you have every function you would want from a single boiler machine, all at a price that stays low.

• Everything built in. Dual PID, automatic low-flow pre-infusion, an analogue pressure gauge, PRESET auto-stop, a wake-up timer and a cup warmer, all on one compact machine.
• A price that stays low. At $1,299 it matches the essentials of premium compact single boilers and adds more, at about $380 less than the Profitec Go.
• Right for every stage. Upgrading from an entry-level machine, learning your first espresso or shopping the premium compact class, the UP gives you the full package without a premium price.

Pair it with a grinder

A great espresso machine deserves a great grinder, and our Classic UP bundles make the pairing easy. Choose from a wide selection of grinders across a range of price points and features, with the machine in Stainless Steel or Black, and save with bundle pricing compared with buying each separately. Gaggia itself recommends pairing the UP with a dedicated grinder in the manual.

Browse the Classic UP bundles