The Barista and Technology ABC

BLOG Coffee knowledge + news

Factors of good preparation and valuable barista knowledge from the world of coffee preparation - tips and tricks on technical backgrounds.

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 Alles über Milch Barista-Tipps Brühgruppe Der richtige Brühdruck E61-Brühgruppe Enkalken Espresso Generalüberholung Highend Espressomühle Kaffee richtig mahlen Kaffee- und Espressomühle Kaffeebohnen Kaffeemaschine entkalken Kaffeemühle für Röster Kaffeemühle richtig einstellen Kaffeezubereitung Kalk Kessel- und Boiler Kupferkessel vs. Edelstahlkessel Mahlgrad Kaffee einstellen Milchschaum Nachhaltigkeit Offset Osmose Pflege- und Entkalkung Sanremo Espressomühle Sanremo X-One Siebträger Siebträger-Technik Single Origin So gelingt der perfekte Milchschaum Tampen Wartung- und Reparatur Wasser X-One Grinder
Was ist die PID-Temperatursteuerung, benötige ich die wirklich?

What is PID temperature control, do I really need it?

Temperature control in coffee machines is one of the key factors for the quality of an espresso. Even a few degrees Celsius difference can noticeably alter the taste. Here's why PID control makes all the difference.
Reparaturtipp: Siebträger baut nicht ausreichend Druck auf

Repair tip: Portafilter does not build up sufficient pressure

Typical pressure problems with portafilter machines can be due to various factors if your portafilter machine does not build up any pressure or does not build up enough pressure.

Der perfekte Milchschaum – Tipps & Tricks für cremigen Kaffee-Genuss

The perfect milk foam – tips & tricks for creamy coffee enjoyment

Make milk foam like a barista Perfect milk foam is what makes a cappuccino, latte macchiato or flat white really special. It should be creamy, fine-pored and stable in order...
Finde die perfekte Espressomühle - Darauf solltest Du achten!

Find the perfect espresso grinder - what you should pay attention to!

This is what you should pay attention to when choosing your espresso grinder! One of the 5M rules stands for the correct grinding of coffee - after selection and roasting, another important point that determines the quality of a cup of espresso.
So stellst Du den optimale Mahlgrad Deiner Kaffeemühle ein

How to set the optimal grinding level of your coffee grinder

Fine, medium, coarse – which setting is the right one? The ultimate guide to adjusting the grinding level of your coffee grinder.
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!
So tampst Du richtig - Wertvolle Tipps für die perfekte Kaffeezubereitung

How to tamp properly - valuable tips for the perfect coffee preparation

Why is tamping (compressing coffee) so important and what influence it has on the taste of the coffee.
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.