What does E61 mean on an espresso machine?
Ernesto named the grouphead design E61 because there was a solar eclipse in 1961, so E61 is short for Eclipse of 1961. The design uses a thermosiphon heating circuit to pull water from the boiler to the grouphead and back to the boiler.
What is an E61 group head made of?
brass
The E61 is made of solid brass. The heat exchanger and a Thermosyphon system circulate hot water through the brew group, keeping it constantly heated.
What size is E61 group head?
58mm
Espresso Coffee Bottomless Portafilter E61 Group-head 58mm Coffee Machine (Brown)
What is a E61 Portafilter?
1st-line’s very own E61 Bottomless portafilter, also known as a naked portafilter. In addition, our bottomless portafilters have true size 3 cup filter baskets unlike any other that can hold up to 21 grams of ground coffee (and has a diameter of 59mm). Has a max lip thickness of ~6.5mm (~.50 max lip differential)
What is a Grouphead?
Essentially, the group head is the part of the espresso machine where water from the boiler is dispensed into the coffee filter basket. It acts as a meeting point, connecting the machine to the group handle and the water to coffee.
Who invented E61?
Ernesto Valente
Invented by Ernesto Valente in 1961, the E61 introduced many more innovations and espresso firsts. Rather than relying on the manual force of the barista, it used a motorized pump to provides the nine atmospheric bars of pressure needed for brewing espresso.
What size is E61 portafilter?
With the most popular 58mm portafilter dating back to 1961 with the birth of the e61, it enjoys the legacy position that is hard to beat.
Are all 58mm Portafilters the same?
What Pat said — 58mm baskets are interchangeable, but many PFs are not. Rancilio and E61 PFs are interchangeable, and the bottomless Rancilio is sold by a few on line vendors as an E61 bottomless, so you got lucky.
Is E61 58mm?
With the most popular 58mm portafilter dating back to 1961 with the birth of the e61, it enjoys the legacy position that is hard to beat. You can pull the same brew ratio of ground coffee to liquid coffee using either portafilter.
What size is E61?
For almost all E61 machines, the correct gasket size is 8.5 mm.
How does a Grouphead work?
The group head is a part of any espresso machine. It is the heart of the machine and responsible for creating a great cup of espresso. Located on the front of the machine, the group head is a metal, permanent attachment that brings water out of the machine and into the filter basket.
What is an E61 group head?
E61 group heads are an espresso machine group head design that have been around since 1961. It’s a design that is very tried and true and is one that is used on many of our prosumer grade espresso machines and even some commercial machines like the Faema Legend and the Faema Jubile.
Where is the vibiemme grouphead lever on an E-61?
E-61 Vibiemme Grouphead Lever Rod E-61 Cam Shaft Sleeve Lever Gasket for E-61 Groups These gasket are located on the cam shaft where it attaches to the grouphead lever. Vibiemme Grouphead Teflon Gasket Located inside the grouphead under the mushroom valve. Copper Washer for E-61 Grouphead Front
What is the difference between the E61 and other brew groups?
While there are newer designs such as saturated brew groups that have better temperature stability, the design of the E61 keeps the temperature more stable and evenly distributed than machines with electrically heated groupheads.
Where is the Teflon gasket on an E-61 grouphead?
Vibiemme Grouphead Teflon Gasket Located inside the grouphead under the mushroom valve. Copper Washer for E-61 Grouphead Front Some E-61 Groupheads have this washer in Teflon; some in copper. This Compression Copper Washer is a replacement for both.
