FAQ Coffee Knowledge & Technology

Important knowledge and background information on coffee and machine technology


Just like wine or olive oil, there are a wide variety of coffee qualities when it comes to Arabica and Robusta beans. The location, the growing conditions and the care with which a coffee is grown, harvested, selected, dried and roasted determines whether it goes from "well, it wakes you up" to "wow, what a treat" - although we at HOC definitely prefer the great taste experience...

In this FAQ coffee blog, we would like to look at the coffee production process, the question of what are the best professional portafilter machines, which grinding level of a coffee grinder is the right one, why is cleaning a brewing group so important, what technical differences are there, which barista accessories are necessary and how do you prepare an optimal coffee.

All Barista-Tipps Der richtige Brühdruck E61-Brühgruppe Edelstahlboiler Enkalken Espresso Generalüberholung Highend Espressomühle Kaffee richtig mahlen Kaffeebohnen Kaffeemaschine entkalken Kaffeemühle Kaffeemühle für Röster Kaffeemühle richtig einstellen Kaffeezubereitung Kalk Kessel einer Kaffeemaschine Kupferboiler Kupferkessel vs. Edelstahlkessel Mahlgrad Kaffee einstellen Offset Osmose Profi-Kaffeemaschine Reparatur Sanremo Coffeemachines Sanremo Espressomühle Sanremo X-One Siebträger Siebträgermaschine Single Origin Tampen Wartung X-One Grinder
Offset Einstellungen Brühtemperatur

Offset - The correct temperature setting of a portafilter

Temperature stability plays a crucial role in the preparation of espresso and ensures optimal extraction. In this article, we will show you why adjusting the offset setting is not always useful or necessary.
Generalüberholung - Ein neues Leben für Deine Siebträgermaschine

General overhaul - A new life for your portafilter machine

What should you do if the portafilter machine no longer works properly? Buying a new one can be expensive. Here's an insight!
Siebträgermaschine: Der perfekte Brühdruck für einen guten Espresso!

Portafilter machine: The perfect brewing pressure for a good espresso!

Espresso is a complex and demanding way of brewing coffee. What influence does the portafilter machine have on the perfect brewing pressure!
Was darf es denn sein - Kupfer- oder Edelstahlkessel?

What would you like – a copper or stainless steel kettle?

Copper boiler vs. stainless steel boiler: portafilter - what's important? Find out here the special features of copper or stainless steel boilers and our conclusion.
10 Barista Geheimnisse für einen richtig guten Espresso

10 Barista Secrets for a Really Good Espresso

We asked our experienced barista what makes a good espresso. Here you can find out what's important.
Warum ist das richtige Wasser beim Kaffee so wichtig?

Why is the right water so important for coffee?

Disturbing substances in the water can affect the taste, consistency and appearance of your coffee or tea.
Was sind Kaffeeblends und was macht sie so besonders?

What are coffee blends and what makes them so special?

Coffee blends vs. single origin coffee. Just like wine or olive oil, there are a wide variety of coffee qualities when it comes to Arabica and Robusta.
Kaffee richtig rösten - Röstlich Brothers die perfekte Verbindung

Roasting coffee properly - Röstlich Brothers the perfect combination

Sustainable and fair - Find out here how we and our partners at the "Coffee Brothers" roasting company get the best out of the espresso bean.
Reinigung der Siebträgermaschine - Arbeit die sich lohnt

Cleaning the portafilter machine - work that is worth it

Find out here why daily cleaning of a portafilter machine is not just a question of hygiene.
Die E61 Brühgruppe - Revolution der Espressomaschine

The E61 brewing group - revolution of the espresso machine

With the E61 model, Faema introduced several groundbreaking innovations in espresso machine technology.