Rocket Espresso Gravo 63 – GbW espresso grinder with 63 mm flat burrs, touchscreen, and variable RPM

The Rocket Espresso Gravo 63 is one of the most exciting new Grind by Weight espresso grinders of 2026 and is aimed at discerning home baristas and prosumers. With 63 mm flat burrs, electronic grind adjustment, a touchscreen, a brushless 300-watt motor, and variable RPM control from 500 to 1500 RPM, the Rocket Gravo combines modern grinder technology with Rocket’s new design language.

If you want to buy a Rocket Gravo espresso grinder or pre-order the Rocket Gravo, you’ll get one of the first Rocket grinders featuring genuine GbW technology, electronic recipe logic, and practical features for flexible home barista workflows.

Key benefits at a glance

• 63 mm flat burrs in a screwless / blind design
• Grind by Weight, Grind by Time, and Single Shot in one grinder
• Electronic grind setting with savable recipes
• 500–1500 RPM standard, expandable to 2000 RPM with a long press
• 300-watt brushless motor
• 2.5-inch touchscreen with simple home screen operation
• Practical bean hopper system with 5 inserts
• Tool-free removable stainless steel chute and easily accessible flapper
• WiFi hardware already integrated for future sync functions
• Compact stainless steel housing with the signature Rocket premium look

Grind by Weight – precise dosing without reweighing

The heart of the Rocket Gravo 63 is the integrated real-time scale. The grinder weighs each dose live during the grinding process and stops automatically as soon as the desired target weight is reached. This reduces manual adjustments and ensures a significantly more convenient workflow.

This is a real advantage, especially in the espresso sector: instead of dosing based on time or feel, you get a clearly defined target amount for every shot. This improves reproducibility and saves time in daily use—especially when you regularly work with the same recipes.

Important to note: In the analyzed prototype, the GbW function still showed a variance of approximately ±0.5 to 0.6 g. However, Rocket has already announced that it will further optimize the algorithm before the start of series production. Improved dosing accuracy is therefore expected for the final market version.

Three dosing modes in one grinder

The Rocket Gravo 63 combines three modes in one system:

• Grind by Weight (GbW) for weight-based grinding
• Grind by Time (GbT) for time-based grinding
• Single Shot for single servings or the final dose of your chosen beans

This combination makes the Gravo significantly more flexible than classic Rocket grinders from earlier generations. It is therefore suitable for both users seeking maximum consistency and those who want to switch between different coffees and recipes.

Easy bean change – ideal for decaf and multiple coffees

One of the most exciting practical features of the Rocket Gravo 63 is the 5-part insert system in the bean hopper. Rocket has developed a well-thought-out concept here that allows for more flexible bean changes than many classic hopper grinders.

The inserts are labeled A, B, C, D, and E, and each limits the remaining bean volume in the hopper. The smallest insert holds approximately 15 g of remaining beans. In practice, this means:

• Grind the last dose precisely
• Close the hopper
• Remove the hopper without tools
• fill with new beans
• continue with the appropriate recipe

For home baristas who want to switch between regular beans and decaf or between two to three specific espresso roasts, this is a real advantage. While it’s not a classic single-dose system like those found in specialized single-dose grinders, it’s a very practical and everyday-friendly workflow for discerning households.

Electronic grind setting instead of classic mechanics

A key distinguishing feature from the previous generation of Rocket grinders is the electronic grind setting. The grind setting is adjusted digitally via the touchscreen and can be linked directly to recipes.

This offers clear advantages in everyday use:

• precise reproducibility
• clean operation with saved recipes
• convenient switching between different coffees
• no cumbersome menu navigation

Important to note: Based on current knowledge, the displayed values are not actual micrometer measurements but relative scale values. For the user, this is less critical in everyday use than for technical classification—what matters most is that settings can be saved and recalled consistently.

Variable speed – RPM control up to 2000 rpm

The Rocket Gravo 63 typically offers an adjustable speed range from 500 to 1500 RPM. Practical testing of the prototype also revealed that a long press can unlock speeds of up to 2000 RPM.

This feature is particularly interesting for home baristas who like to experiment. The speed influences both the extraction behavior and the flavor. Those who try out different beans, roasts, and recipe styles gain additional flexibility for fine-tuning.

63 mm flat burrs in a blind / screwless design

The Rocket Gravo uses 63 mm flat burrs in a blind burr design. The upper unit is designed for easy maintenance and is accessible with just a few screws. This makes it relatively simple to maintain or replace the burrs.

Another advantage is the easy access to the interior. For users who value care, cleaning, and long-term maintainability, this is a real plus.

Serviceability – one of the Gravo’s major strengths

In practical testing, the Rocket Gravo 63 was particularly praised for its serviceability. Many parts can be reached quickly and easily:

• the chute is made of stainless steel and can be removed without tools
• the flapper can be removed very easily
• the grinding discs are easily accessible
• the hopper can be easily removed

This is a clear advantage over many more enclosed systems, especially for users who want to clean their grinder regularly or adapt it to new requirements later on.

Flapper, clumping, and what Rocket still wants to improve

One point of criticism regarding the tested prototype was the current flapper. During testing, the ground coffee sometimes came out of the grinder relatively clumpy. Rocket has already confirmed that a redesign of the flapper is planned.

Particularly positive: The flapper is very easy to access and should be simple to replace if needed. This isn’t just user-friendly, but also shows that Rocket responds to real-world feedback.

Quiet operation and intuitive controls

In the test, the Gravo was also described as pleasantly uncluttered to use. Instead of nested menus, the grinder operates largely directly from the home screen. Settings for dose, RPM, and grind size are quickly accessible and feel very intuitive in everyday use.

The noise level was also mentioned positively. While an official dB value is not yet available, in practical use the brushless motor operates audibly quietly.

WiFi and Future Potential

The Rocket Gravo 63 already features WiFi hardware. Rocket plans to use this to eventually introduce features like Grind-by-Sync, which enables coordinated communication between the grinder and a compatible machine.

This feature does not appear to be fully rolled out at launch, but it makes it clear that the Gravo is intended as a platform for future Rocket integrations.

Technical Specifications

• Grinding discs: 63 mm, flat, blind / screwless
• Motor: brushless, 300 watts
• Speed: 500–1500 RPM standard, up to 2000 RPM with a long press
• Grinding capacity: up to 2.5 g/s at 1500 RPM
• Hopper capacity: 300 g
• Display: 2.5" touchscreen
• Dosing modes: GbW, GbT, Single Shot
• Recipe memory: up to 3 recipes per mode
• Dimensions (W × D × H): approx. 135–140 × 260 × 410 mm
• Housing: Stainless steel
• WiFi: Available, future sync features planned

Rocket Gravo 63 in comparison – who is this grinder best suited for?

Many users are currently comparing the Rocket Gravo 63 with models like the Eureka Mignon Libra or the Fiorenzato AllGround Sense. While these also rely on Grind by Weight, the Gravo clearly positions itself as a new-generation Rocket prosumer grinder.

• Modern Rocket design
• Variable RPM for greater control over flavor and extraction
• Electronic grind setting instead of classic mechanics
• Practical bean-changing system
• WiFi capability for future Rocket Sync features

If you’re specifically comparing the Rocket Gravo to the Eureka Mignon Libra or the Rocket Gravo to the Fiorenzato AllGround Sense, the Gravo is particularly appealing to those looking to build a modern Rocket setup with future-proof technology.

Who is the Rocket Gravo 63 suitable for?

• Ambitious home baristas focused on espresso
• Users looking for a high-quality GBW grinder with a modern interface
• Rocket fans looking to build a visually cohesive setup
• Prosumers who want flexibility in choosing recipes and beans
• Households that switch between espresso and decaf or multiple ground beans
• Small semi-professional environments focused on consistency

Important notes regarding the data

Since this is a new product in the pre-order or early-launch stage, some specifications are still preliminary or refer to a tested prototype. These include, in particular:

• Final GbW precision of the production version
• Retention in the final market device
• Final flapper version
• Noise level in dB
• Exact width (135 or 140 mm depending on the source)

Rocket has already indicated that it will implement further optimizations before the start of series production.

Buy the Rocket Gravo 63 – is pre-ordering worth it?

If you want to buy a Rocket Gravo 63 or pre-order the Rocket Gravo, you’ll be getting one of the most technically exciting Rocket grinders of recent years.

It is precisely the combination of Grind by Weight, 63 mm grinding discs, touchscreen, RPM control, 300-watt motor, and flexible bean-changing system that makes the Gravo 63 one of the most interesting new releases in the Rocket segment for 2026.

FAQ – Frequently Asked Questions About the Rocket Gravo 63

Is the Rocket Gravo 63 a single-hopper grinder?

Not in the traditional sense. The Gravo is a hopper grinder with a 300-gram bean hopper. However, thanks to its 5-part insert system and single-shot mode, it offers significantly more flexibility when switching beans than many traditional hopper grinders.

Can I switch between decaf and regular beans?

Yes, that’s exactly what makes the Gravo so useful in everyday use. Thanks to the insert system, the removable hopper, saved recipes, and the single-shot mode, switching between two or three specific bean varieties is much more convenient.

Does the Rocket Gravo 63 have Grind by Weight?

Yes. The built-in real-time scale is one of the Gravo’s core features. In addition to Grind by Weight, Grind by Time and Single Shot are also available.

Is the GbW dosing precise?

In the prototype we tested, the variance was still around ±0.5 to 0.6 g. However, Rocket has already announced that it will further refine the calibration for the production version.

How large are the grinding discs?

The Rocket Gravo 63 uses 63 mm flat burrs in a blind/screwless design.

Is the Rocket Gravo 63 quiet?

An official dB value is not currently available. In practical testing, however, the brushless motor was described as pleasantly quiet.

What does the RPM setting do?

The speed affects grind consistency, extraction, and flavor. For those who use different beans or recipe styles, this provides additional flexibility for fine-tuning.

Does the Rocket Gravo 63 have WiFi?

Yes. Wi-Fi is already built-in. Rocket plans to use this for future sync functions between the grinder and compatible machines.

Is the Rocket Gravo 63 available yet?

The Gravo is currently available for preorder. The planned delivery date in Germany is currently set for late April / early May 2026. Delays are possible.

Conclusion

The Rocket Espresso Gravo 63 is not merely an evolution, but a clear fresh start in the Rocket grinder segment. It combines Grind by Weight, digital controls, variable RPM, excellent serviceability, and a well-thought-out bean-changing concept in a machine clearly designed for sophisticated espresso setups.

It is particularly appealing to users seeking a Rocket grinder with modern technology, flexible recipe logic, and a practical workflow —even if they want to switch regularly between different beans, such as espresso and decaf.

Oplysninger om producenten

Rocket Milano S.r.l., Via E. Curiel 13, 20060 Liscate, Milan, Italy, www.rocket-espresso.com, info@rocket-espresso.com