Rocket Bottomless Portafilter incl. double basket – 58 mm naked portafilter
Dark, dense drops at the bottom of the basket that merge into a single stream: with the bottomless portafilter you see the extraction before you taste it.
The Rocket Espresso bottomless portafilter is designed for Rocket machines, has a 58 mm diameter and comes with a 21 g double basket. Without spouts, the stream shows whether the water runs evenly through the puck.
What you see is a hint, not a verdict. What counts is the taste in the cup and the brew ratio, with 1:2 as a starting point. Our opinion is one of many. Coffee Coaching Club is a Rocket partner in Switzerland.
At a glance
| Manufacturer |
Rocket Espresso |
| Type |
Bottomless portafilter (naked) |
| Diameter |
58 mm |
| Basket |
21 g double basket, included |
| Fits |
Rocket Espresso machines (manufacturer specification) |
Who it is made for
For everyone with a Rocket who wants to read grind size, distribution and tamping from the stream, whether you are just starting or have been refining your espresso for years. Gaskets, shower screens and more baskets are in Rocket accessories and spare parts, more models in portafilters & bottomless portafilters.
For anyone who wants a tamper that is affordable and precise: the pressure-regulating 58.5 mm tamper from the Normcore collection. If you want a self-levelling tamper: the Really Nice Tamper from Weber Workshops. For the brew ratio in the cup: scales from Normcore, or with app and flow rate from Acaia.
The machines are in our Rocket Espresso collection. If you are planning machine, grinder and accessories together, our advice tool helps.
Frequently asked questions
What is a bottomless portafilter good for?
You see the shot directly at the bottom of the basket and can tell whether the water runs evenly through the puck. This helps when adjusting grind size, distribution and tamping.
Is a basket included?
Yes, a 21 g double basket is included.
Does the portafilter fit my Rocket?
Rocket Espresso specifies it for Rocket machines. For a machine from another brand, we are happy to check the fit in advance by email to [email protected].
Can I see the product before buying?
Our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b) show a wide selection, but not our entire range – the display changes. Not every accessory is on hand at all times, so write to us in advance.
How fast is delivery?
Delivery throughout Switzerland and to Liechtenstein in 2–4 working days. Click & Collect is available in Bern and Zurich.
Tip from the roastery: At the open basket you see how a coffee runs. We recommend Cozy Chocolate and Nutty Delight, full-bodied with chocolate and nut. If you want maximum body without acidity, take Very Nutty. For the curious: Wild Peach, fruity and lively. This is our recommendation, one of many.
