Measure Portafilter Size: Portafilter Tamper Size Chart for Espresso Machines

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The only task of a portafilter is to hold the coffee ground while making espresso. It is an essential tool, but measuring a portafilter’s size may sound silly. But knowing the size of a portafilter is crucial for many reasons. Users who know its importance would like to learn – how to measure a portafilter’s size.

A digital caliper can measure a portafilter’s diameter more accurately. You can also use a steel measuring tape as an alternative, though it will take a while. The simplest way is to find the exact model number of a portafilter so that you can quickly check its diameter from its manufacturer’s website.

In this post, we will share all these three different methods of measuring a portafilter’s size.

Portafilters’ Tamper Size Chart for Espresso Machines (Alphabetical Order)

Portafilters' Tampers

Machines Bran NameTamper Size Chart
Azkoyen58 mm
Bodum Granos51mm
Breville 800 Series51 mm
Breville Express and Infuser53 mm
Cimbali57mm or 58mm
Cimbali Casa57 mm or 58 mm
Cimbali JuniorDT158 mm
Cuisinart51 mm
Dalla Corte53.2mm
Delonghi (new models)51 mm
Delonghi (old models)49 mm
Delonghi (old)49mm
Delonghi BAR32, BAR42, BCO264b51mm
ECM Botticelli58mm
ECM Cellini58 mm
ECM Commercial Models58 mm
ECM Giotto58 mm
ECM Giotto/Cellini58mm
Elektra (Home and Commercial Models)58 mm
Espressione Cafe Retro58 mm
Espressione Caffe Novecento53 mm
Faema Family53mm
Francis! Francis! x1 (old)52mm or 53mm
Francis! Franis! x1 (new)56mm
Francis!Francis New Version56 mm
Francis!Francis Old Version57 mm
Gaggia Classic58 mm
Gaggia Factory Lever51 mm
Gaggia Semi-Auto58 mm
Kitchenaid Proline58 mm
La Marzocco58.3mm
La Pavoni56mm
La Pavoni Duet, Club, Napolitana57mm
La Pavoni Europiccola49mm
La Pavoni lever51 mm
La Pavoni Lever (Millenium New Lever)51mm
La Pavoni Lever (older Pre 2000)49mm
La Pavoni Lusso53 mm
La Pavoni Pisa, Si53mm
La Pavoni Napolitana57 mm
La Riviera45 mm
La Scala58mm
La Spaziale commercial models53 mm
La Spaziale home models52 mm
La Valentina58 mm
Mypressi Twist53 mm
New Breville Models58 mm
Nuova Simonelli58mm / 58.34mm
Nuova Simonelli (Appia, Grinta, and Oscar)58 mm
Olympia Club49 mm
Olympia Cremina49 mm
Olympia Express49mm
Pasquini Livia58mm
Pasquini Livietta58 mm
Quick Mill58 mm
Rancilio Silvia58 mm
Saeco53 mm
San Marco54.4mm
Solis53mm or 52mm
Starbucks Barista52 mm
Sunbeam – standard (cafe series is 58mm)51mm

Why is it Important to Measure a Portafilter’s Size?

The size of a portafilter is important for trying different types of espresso. Each espresso recipe requires a precise amount of coffee grounds. Knowing the size of your portafilter will give you a quick assumption about the amount of coffee ground in it.

For instance, ask an experienced barista – how much coffee for a 54mm portafilter? They will answer 18 grams without thinking much. Similarly, you can measure the coffee ground’s amount fast if you know a portafilter’s size.

This technique is excellent for professionals since it saves time and effort. The best thing is you don’t have to measure ground coffee separately each time.

Read: Our Recommended Espresso Machine Portafilters

How to Measure a Portafilter’s Size in Different Ways:

You can apply these three following techniques to know a portafilter’s size.

• Method 1: Measure it with a Digital Caliper.

A digital caliper has options to measure both the inner and outer diameters of an object. You will need to use the inner measurement scale to measure a portafilter’s size.

Put the caliper’s inner jaws into a portafilter and extend them until they touch its rim. Now, look at the display to know how wide the diameter is.

Read: Bottomless Portafilter vs Regular – Differences

• Method 2: Measure it with a Steel Measuring Tape.

Are you good at using steel measuring tapes? It is a plus point since you will not need a caliper. But, you have to do a simple calculation to find a portafilter’s diameter in millimeters.

Take a steel measuring tape and place it on a portafilter’s rim in the crosswise position. You should find its diameter in centimeters. Now it is time to convert the measurement into millimeters. For example, if the diameter is 5.8 cm, multiply it by 10. The result will be 58, which means it is a 58mm portafilter.

Read: Why is Bottomless Portafilter Spraying – How to Fix

• Method 3: Find out Its Model Number.

Portafilters from renowned brands have model numbers. If you know the number, you can find a portafilter’s size without any measurement. This is the simplest way of measuring a portafilter’s size.

For Example, Breville SP0027237 is a portafilter manufactured by Breville. If you go to this brand’s website and search the number, you will find that it is a 54mm portafilter.

In general, manufacturers’ websites also mention the coffee ground holding capacity of portafilters and the model of espresso machines they are compatible with.

Read: The Force Tamper Alternative

FAQs on Portafilter Size:

What size of the portafilter is standard?

The standard size of a portafilter varies depending on whether it is for domestic or commercial use. Due to the enormous popularity of Breville, 54mm has been a common size of portafilters for home coffee brewing. In contrast, 58mm is considered the standard size of commercial portafilters.

Can you use a 53mm tamper for a 54mm portafilter?

Sure, you can. A 53mm flat tamper is ideal for a 54mm portafilter to tamp and level coffee grounds.

Does a 58mm portafilter works better than a 54mm?

The size of a portafilter has nothing to do with the extraction quality. But a larger portafilter holds a bigger basket, which means you can extract more espresso.

Do all portafilters fit any espresso machines?

No. The diameter of a portafilter and an espresso machine’s shower head must be the same to work together. Otherwise, you cannot use them.

What does a full-size portafilter mean?

A 58mm portafilter is often called a full-size portafilter since it is larger and makes thicker coffee pucks.

Do all portafilters have the same size?

No. Portafilters have several variations in their size. The smallest diameter of a portafilter is 49mm. On the other hand, 58mm portafilters are considered the biggest. Some portafilters are even available with 61mm diameter; however, they are rarely used.

Final Words

This article has revealed the reasons why some baristas measure their portafilters. Besides, we have mentioned three methods of measuring a portafilter’s size.

They will help you find the accurate diameter of your portafilter and let you know how much ground it contains. If you want to save precious time while making espresso, try one of them today.

I currently reside at Millburn, NJ, United States. I'm a skilled barista and roaster known for my passion for coffee and dedication to creating the perfect cup. I have a strong following of loyal customers who appreciate my expertise and friendly demeanor. In my free time, I enjoy trying new coffee recipes and experimenting with different brewing techniques.

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