Historical Side Note: Ernesto Valente invented the e61 group (shown attached to an Isomac domestic machine in banner image) and it is known as such because it first appeared on the faema e61 espresso machine. Incidentally, the name E61 signifies the total solar eclipse that occurred in 1961, the year of its invention
What is E61 brew head?
E61 is the name of an espresso machine brought to market in 1961 by the Italian company Faema This machine brought in a new era of espresso makers. Not only was the E61 the first heat exchanger machine, meaning that fresh water was used for making espresso instead of boiler water.
Is E61 group head good?
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.
What size is an E61 group head?
Information on Gaskets: E61 group head gaskets come in two thickness’s, 8mm and 8.5mm Some manufacturers use both sizes and some have changed from one size to another.
Is breville dual boiler e61?
The Breville Dual Boiler has its group head design, which is more modern than the ancient Italian version. Bonus Info: The E61 was invented in 1961 , so obviously, we have better technology nowadays. This means that Breville has put in a PID-controller controller both in the boiler and the brew head.
Who invented the E61 Grouphead?
Historical Side Note: Ernesto Valente invented the E61 group (shown attached to an Isomac domestic machine in banner image) and it is known as such because it first appeared on the Faema E61 espresso machine. Incidentally, the name E61 signifies the total solar eclipse that occurred in 1961, the year of its invention.
Does Rancilio Silvia have E61?
Your Silvia does not have an E61 group head.
What is group head?
A grouphead (or group head) is the receiver for the removable portafilter (or group handle) A typical consumer espresso machine normally has only one grouphead, while popular professional machines, such as those used at commercial coffee shops, can contain anywhere from one to seven.
What is a saturated group head?
Answer: A saturated group head is one that is surrounded in water from the boiler Instead of a completely separate component, the group head acts as an extension of the coffee boiler, allowing for consistent water temperature throughout.
Is 58mm portafilter better than 54mm?
Let’s see what the main distinctions with the traditional 58mm portafilter are. During extraction with a 9 bar pressure, the 54mm portafilter weighs about 30kg less on the coffee cake compared to the 58mm With the same dose of coffee, the 54mm portafilter ensures a taller coffee cake.
Are all portafilters the same size?
Portafilter sizes range from 49 mm all the way up to 58 mm Ideally, the 58 mm in diameter are the most common portafilter basket size on the market, while the other relatively rare, especially in commercial machines.
What size is Barista Express portafilter?
Portafilter Kit 54mm for selected Breville Espresso Machines.
What is the purpose of a bottomless portafilter?
Bottomless portafilters allow the barista to instantly deduce whether proper tamping technique has been achieved If the extraction leans to one side or the other an improper angle was used when tamping.
How does an espresso 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 brew group?
The “brew group” is the projection on the front of the machine into which the barista locks the portafilter to make espresso Note that the brew group is large and heavy (so that it retains heat evenly), and it is only a few inches above the drip tray.
Where are rocket coffee machines made?
ROCKET ESPRESSO Designed and hand-made in the heart of Italy , each machine is built for perfection and designed to integrate seamlessly into your kitchen.
How does a portafilter work?
A portafilter is a component of an espresso machine. It’s the spoon-like device that holds the ground coffee. You attach the portafilter to the group head of the espresso machine, where the hot water comes into contact with the ground beans and extracts espresso.
What are the parts of a coffee machine called?
- The Water Source.
- The Pump: The Heart of Your Espresso Machine.
- The Boiler: Bringing the Heat.
- The Boiler: Taking Control of Your Temperature.
- The Steam Wand.
- The Group Head: E61.
- The Group Head: Saturated and Semi-saturated.
- The Group Head: The Portafilter.
What does pre-infusion do in espresso?
Pre-infusion is a key parameter that allows one to grind finer for espresso because it helps reduce channeling For those who don’t know, pre-infusion is letting water into the coffee puck at a lower pressure than normal. Typically, pre-infusion pressure is between 0.5 and 4 bars. 1 to 2 bars is typical.
Does Rocket Appartamento have pre-infusion?
One can pre-infuse with a reservoir-fed e61 , in addition to the pre-infusion built into the group.
Why is my group head leaking?
If the grouphead leaks from the space in between the portafilter and the grouphead during brewing then the group gasket is either worn out or out of place This gasket needs to be replaced typically every six months to a year. Use a flathead screwdriver to pull the shower screen down and off the machine.
What is standard portafilter size?
Portafilter Sizing Portafilters range from 49 mm to 58 mm The most common size is 58 mm.
Is a bigger portafilter better?
We can see that the larger portafilter is subject to a higher force of extraction with the same pressure. What this amounts to in practice is very much dependent on your setup. However it should tend towards better consistency in extraction.
What is the size of Breville portafilter?
We have three size( 51MM/54MM/58MM ) of the Portafilter, please find it in our store.
Which is better double boiler or heat exchanger?
A two group, dual boiler machine can effectively double your capacity With this type of machine you could have two baristas brewing and steaming at once, solving speed issues you might be experiencing. They are also more precise than heat exchangers because of the dedicated boiler.
What does double boiler mean in a coffee machine?
It’s a dual-use boiler , so you either brew your espresso first and then wait for the machine to heat up to steaming temperature, or steam your milk first and cool down the boiler to brewing temperature. With a heat exchange or dual boiler machine you can brew and steam at the same time.
Is the Breville Barista Pro dual boiler?
Moving on to the features that impact the actual coffee making experience, we’ll start with the Dual Boiler’s party piece, and namesake, its’ DUAL BOILERS Having separate boilers for brewing and steaming means that you do not need to wait in between performing each step of the latte making process….
How often should group head be cleaned?
This technique must be done daily with water alone, but at least once a week you should back flush with cleaner such as Puly Caff. To use the cleaner, simply place a tea spoon full on top of the blind filter before back-flushing. Run the group in 10 second intervals several times.
How long should an espresso take to pour?
The best shots of espresso are pulled in a range within 25-30 seconds from when then pump starts, with espresso dropping from the portafilter after 5-7 seconds.
Is E61 58mm?
The E61 grouphead is equal parts industry defining design and modern espresso gold standard. Created in 1961, it revolutionized the espresso industry and remains the definitive standard for most commercial espresso machines today.
What size is the Rancilio portafilter?
The Rancilio Bottomless Portafilter offers a commercial size of 58 mm and lets you observe the quality of your extraction directly.
What is temp surfing?
Temperature surfing refers to starting your shot at a specific time during the heating cycle , so that you get the same water temperature with every shot you pull.
How many group heads do I need?
For home use, one group head is usually enough For commercial uses, two group heads are usually the safest, but depending on the demand, you can opt for one or three group heads as well.
What does group mean in coffee machine?
Group heads, sometimes shortened to ‘groups’ simply refers to the component on an espresso machine that allows the connection with a portafilter During the process of extracting espresso, hot water is forced through the grouphead under pressure.
What are the 3 parts of espresso?
3 parts of an espresso shot. Crema, Body, Heart The second layer is the Body, the middle section of the espresso shot. This should be a caramel color.
How often replace espresso machine gasket?
The portafilter gasket will, typically, last about six months to a year , depending on how much it’s used.
When should an espresso machine gasket be replaced?
Frequency: If your machine used greater than once every 3 days, every 6 months, or if your machine used less than once every 3 days, every 12 months In a commercial environment, the gaskets should be replaced every 3 months or sooner.
Why are gaskets needed?
A gasket stores energy, like a spring, and seals two mating surfaces that fail to perfectly meet Wikipedia: “Fills the space between two objects, generally to prevent leakage between the two objects while under compression.