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 designed for discerning home baristas and prosumers. With 63 mm flat burrs, electronic grind setting, 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’d like to buy a Rocket Gravo espresso grinder or pre-order the Rocket Gravo, you’ll be among the first to own a Rocket grinder 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
• 900–1500 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-changing 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

At 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 the need for manual adjustments and ensures a significantly more convenient workflow.

This is a real advantage, especially in the world of espresso: Instead of dosing based on time or intuition, you get a clearly defined target amount for every shot. This improves consistency and saves time in your daily routine—especially if you regularly work with the same recipes.

Important to note: In the prototype analyzed, the GbW function still showed a margin of error of approximately ±0.5 to 0.6 g. However, Rocket has already announced that it will further optimize the algorithm before the start of mass 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’s 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 feed chute. 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 fixed espresso roasts, this is a real advantage. While it’s not a classic single-bin system like that found in specialized single-bin grinders, it’s a very practical and everyday-friendly workflow for discerning households.

Electronic grind setting instead of traditional 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 1,500 RPM. Practical testing of the prototype also revealed that a long press can even unlock speeds of up to 2,000 RPM.

This feature is particularly interesting for home baristas who like to experiment. The speed influences both the extraction profile and the flavor. Those who experiment with 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.

Ease of maintenance—one of the Gravo’s greatest strengths

In practical testing, the Rocket Gravo 63 was particularly praised for its ease of service. 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.

The 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 in relatively clumpy chunks. Rocket has already confirmed that a redesign of the flapper is planned.

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

Quiet Operation and Intuitive Controls

In the test, the Gravo was also described as pleasantly straightforward to operate. 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. Although an official dB value isn’t yet available, in practical use the brushless motor operates audibly quietly.

Wi-Fi and Future Potential

The Rocket Gravo 63 already features Wi-Fi hardware. Rocket plans to use this to eventually enable features such as Grind-by-Sync—that is, 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
• RPM: 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
• Wi-Fi: Available; future sync features planned

Rocket Gravo 63 Comparison – Who Should Consider This Grinder?

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

• More modern Rocket design
• Variable RPM for greater control over flavor and extraction
• Electronic grind setting instead of traditional mechanics
• Practical bean-changing system
• Wi-Fi 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 who want to build a modern Rocket setup with an eye toward future 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 who want to build a visually cohesive setup
• Prosumers who want flexibility in switching between recipes and beans
• Households that switch between espresso and decaf or multiple types of beans
• Small semi-professional environments focused on consistency

Important Notes on 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-ready unit
• Final flapper version
• Noise level in dB
• Exact width (135 or 140 mm, depending on the source)

Rocket has already indicated that it plans to implement further optimizations before the start of mass production.

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

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’s the combination of Grind by Weight, 63-mm burrs, a touchscreen, RPM control, a 300-watt motor, and a flexible bean-changing system that makes the Gravo 63 one of the most interesting new releases in the Rocket lineup for 2026.

FAQ – Frequently Asked Questions About the Rocket Gravo 63

Is the Rocket Gravo 63 a single-bin grinder?

Not in the traditional sense. The Gravo is a hopper grinder with a 300-g 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 for everyday use. Thanks to the insert system, the removable hopper, saved recipes, and 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 (GbW), Grind by Time and Single Shot modes are also available.

Is the GbW dosing precise?

In the prototype we tested, the variation 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 rating is not currently available. In practical testing, however, the brushless motor was described as pleasantly quiet.

What does the RPM setting do?

The RPM affects grind consistency, extraction, and flavor. If you use different beans or recipe styles, this gives you additional flexibility for fine-tuning.

Does the Rocket Gravo 63 have Wi-Fi?

Yes. Wi-Fi is already built in. Rocket plans to use it in the future for 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 listed as 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 Rocket’s grinder segment. It combines grind-by-weight, digital controls, variable RPM, excellent serviceability, and a well-thought-out bean-changing system in a single device clearly designed for sophisticated espresso setups.

It’s particularly appealing to users looking for 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.

Angaben zum Hersteller

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