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.

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.

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.
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.