Rocket Espresso Gravo 63GbW espresso grinder with 63 mm flat burrs, touchscreen and variable speed
Grind size decides before the machine even starts.
The beans sit in the hopper, ground on demand. This is the faster way when the same variety is always running.
- 01 No scale next to itThe grinder weighs the dose itself and stops at the set weight. No reweighing, no residue in the portafilter, the same espresso in the morning as yesterday.
- 02 63 mm burrsSmaller burrs need more revolutions for the same amount. For a few drinks a day that does not make a difference.
The technology that matters for espresso.
On the machine
The diameter of the grinding burrs determines how many revolutions are needed for the same amount of coffee.
The grinder weighs itself and grinds until the set amount is in the portafilter.
A large hopper means less frequent refilling.
Inside: you do not see it, but you notice it
A large hopper means less frequent refilling.
TypeOn-Demand
The beans sit in the hopper and are ground on demand.
Speed2.5 g per second
The grinder output indicates how much ground coffee comes out per second.
What matters for this grinder.
The numbers from the data sheet, in the order that matters. A faster grinder does not grind better, it only grinds more.
Large burrs, cooler grounds
The larger the burrs, the fewer revolutions are needed for the same amount of coffee. The grounds heat up less, and heat in the ground coffee costs aroma.
How long a dose takes
For 18 g of coffee, calculated from 2.5 g per second. For a single drink you hardly notice it: brewing and milk foam take longer than grinding. For 50 drinks during peak time that is about 1 minutes less grinding time than the mid-range of our assortment.
This is how much space it needs
These are 364 square centimeters of counter that are permanently occupied. At 41 cm height you need space above it for refilling.
All values come from the data sheet of this device. If a specification is missing, it is not listed here.
The data sheet, complete and without needing to ask.
The same values by which you filter and compare in the shop. Is something missing? Write to us, we'll add it.
Grinder
The beans sit in the hopper and are ground on demand. This is the faster way in everyday life, especially if the same coffee is used all the time. A full hopper, however, means that the beans at the bottom are exposed to the air for longer.
The diameter of the grinding burrs determines how many revolutions are needed for the same amount of coffee. Larger burrs need fewer revolutions, the grind warms up less, and heat in the grind reduces aroma.
The grinder weighs itself and grinds until the set amount is in the portafilter. That stays the same even when the bean changes or the bag gets emptier, where a time-based control would need readjusting.
Dosing and performance
A large hopper means less frequent refilling. Bear in mind that beans age in it: anything that stays in the hopper for longer than a few days loses aroma, no matter how good the grinder is.
The grinder output indicates how much ground coffee comes out per second. For a single drink you hardly notice it, as extraction and milk determine the time. You only feel it when many drinks are made back to back.
A large hopper means less frequent refilling. Bear in mind that beans age in it: anything that stays in the hopper for longer than a few days loses aroma, no matter how good the grinder is.
Operation
Dimensions and energy
Use
Manufacturer: Rocket · Rocket Milano S.r.l., Via E. Curiel 13, 20060 Liscate, Milan, Italy, www.rocket-espresso.com, [email protected]
You buy a machine for ten years. We'll be there.
2 years statutory warranty, handled by us
You write to us, not the manufacturer. We organize pickup, repair and return shipping.
Spare parts & maintenance
Seals, shower screens, pumps in stock. Maintenance service recommended after two years.
Installments via PayPal
* Creditworthiness required. Installment example PayPal Installments: effective annual interest rate 12,49 % p. a., fixed nominal interest rate 11,80 % p. a., term 24 months. PayPal shows terms and total costs in the next step. Only for customers resident in Germany.
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Write to us if you are unsure about the selection. We roast ourselves and drink what we sell.