Espresso Portafilter Sizes by Machine

Portafilter size by espresso machine

Of 25 espresso machines in our database with a published portafilter size, 13 use 58 mm, eight use 54 mm, one uses 57 mm, one uses 53 mm, one uses 52 mm, and one uses 51 mm. Every 54 mm machine is a Breville. Super-automatics such as the De'Longhi Eletta Explore, Jura Z10, and Jura E6 have a built-in brew unit instead of a portafilter, so they aren't listed.

We list a size only when the brand states it. Models without a published figure stay out of the table until we find one; tell us if yours is missing.

Gaggia Classic Pro portafilter size

The Gaggia Classic Pro portafilter size is 58 mm. The 2023 Classic Evo Pro sold in the US ships with a polished stainless 58 mm portafilter, per Stark Insider's launch coverage (June 22, 2023), and the E24 sits on the same RI9380 platform. Gaggia's own manual for the Classic (2019, document 4219-465-02181) covers the RI9380.

That puts the Classic in the most common size in our table, shared by eight brands. Our Gaggia Classic Pro review covers the generations in detail.

Breville portafilter size: 54 mm or 58 mm?

It depends on the model. Breville's product pages describe a “High quality 54mm portafilter” on its home machines and a “Commercial grade 58mm portafilter” on the Oracle line. In our database:

• 54 mm: Bambino, Bambino Plus, Barista Express, Barista Express Impress, Barista Pro, Barista Touch, Barista Touch Impress, and Infuser.
• 58 mm: Dual Boiler, Oracle, and Oracle Touch.

So a 58 mm basket or tamper won't fit a Barista Express, and a 54 mm one won't fit a Dual Boiler. Our Breville accessories guide covers baskets and tools by model.

E61 and other 58 mm groups

Outside Breville, nearly every machine in our table uses a 58 mm group. Lelit's L58E, its name for an E61-type group, takes 58 mm on the Bianca and Mara X, and Lelit says it is “compatible with LELIT58 barista tools.” Meraki, Profitec, Rancilio, La Marzocco, and Ascaso machines in the table are 58 mm too.

The exceptions we found are the Lelit Anna (57 mm), the Lucca A53 Mini (53 mm), the Wacaco Picopresso (52 mm), and the Casabrews 5418 Pro (51 mm). Our E61 machine picks and prosumer picks compare the 58 mm machines on other points.

Does portafilter size matter?

Size alone doesn't make better espresso; nothing in the brand documents we read claims that. It matters for parts and tools. A basket, tamper, or distribution tool has to match your portafilter, and 13 of the 25 machines in our table, across eight brands, share 58 mm.

In our table, 54 mm is a Breville-only size. Breville's US parts page lists portafilters and tampers; before you buy one, check that the listing names your model.

How to find your portafilter size

The quickest answer is your manual or the product page for your model, which is where every number in the table comes from. If your machine isn't listed, look in the manual's specifications or parts list.