The La Marzocco GS3 AV pursues a different goal than the GS3 MP: not as much manual intervention during the shot as possible, but the highest possible repeatability. The automatic volumetric dosing is intended to reproduce properly configured shots conveniently in everyday use.
This is a technical buying guide based on the current specifications, not a purported long-term test.
What does AV mean?
AV stands for automatic volumetric dosing. The machine measures the water flow and ends the extraction at a programmed volume. For the user, this means that once programmed correctly, the shot does not have to be stopped manually every time.
This is especially practical when steaming milk at the same time or preparing several identical drinks in succession.
The technical platform
The GS3 AV combines a 1.5 l coffee boiler with a 3.5 l steam boiler, a saturated brew group, dual PID, and a rotary pump. It can be operated using either the reservoir or a direct water connection.
Saturated brew group
The brew group is thermally closely coupled to the coffee boiler. This supports stable temperature control and is an important part of La Marzocco's professional DNA.
Dual PID and different roasts
Reproducible temperature is especially important when comparing different coffees. Light roasts are often dialed in differently from dark, classic espressos. PID gives you a controllable variable for this.
Volumetrics: convenience, but no autopilot
Volumetrics does not eliminate the need to dial in. Grind size, dose, and brew ratio must be correct beforehand. Only then does the automatic stop function become a real advantage.
Anyone who generally wants to control the beverage quantity by weight should bear in mind that volume and weight are different measurements. A scale remains useful during setup.
Four programmable dispensing buttons
Several saved volumes are useful when using different drinks or baskets. In a multi-person household or small office, everyone can use a defined starting point.
Steam power
The 3.5 l steam boiler offers very high reserves. Preparing several milk drinks in succession is clearly within the machine's intended use profile.
Water line or tank
Tank operation allows flexible placement. A water line becomes appealing when the GS3 is permanently part of a coffee station. In this case, water quality should be planned professionally from the outset.
Home app
The app supplements the classic machine workflow with digital settings and convenience features. The actual shot remains very straightforward through the programmed shot buttons.
GS3 AV or GS3 MP?
AV for repeatability and convenience, MP for manual profiling. Anyone who enjoys actively working with pressure and flow during the shot will engage more with the MP. Anyone who wants to repeat virtually identical recipes will understand the AV's appeal more quickly.
GS3 AV or Linea Mini R?
The Mini R is geared more toward the modern premium home workflow with a Brew-by-Weight option and a more compact platform. The GS3 AV offers larger boilers, a saturated group, and a more professional build.
Which grinder is a good match?
With a volumetric machine, a consistent dose is particularly important. Grind by Weight can therefore be an excellent fit. Single dosing remains useful when switching between coffees frequently.
Strengths
- programmable volumetric dosing,
- saturated brew group,
- large steam capacity,
- dual PID,
- Rotary pump,
- Tank or water line.
Potential limitations
- high price and large footprint,
- less manual profiling freedom than the GS3 MP,
- Volumetric dosing does not replace a scale when dialing in,
- For a single espresso per day, its capacity is excessive.
Who is the GS3 AV suitable for?
For demanding home baristas, offices, or high-end coffee stations where consistent drinks and a fast workflow are more important than free pressure profiling.
Frequently asked questions
Does the GS3 AV stop the shot automatically?
Yes, according to the programmed volumetric amount.
Can it be connected to a water line?
Yes. It can be operated from the tank or connected to a water line.
Is the AV easier than the MP?
Yes, during the shot, because manual profiling is eliminated. Dialing in remains classic barista craftsmanship.
Conclusion
The GS3 AV is a premium platform for repeatability. Its strength is not maximum manual intervention, but the combination of professional thermal performance, ample steam capacity, and programmable shots.
View the La Marzocco GS3 AV at BaristaYOU
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