Arne Preuss

Coffee Expert

Hi! My name is Arne. After a few years as a barista, I've dedicated myself to a mission: To bring more good coffee to the people. To this end, my team and I provide you with a broad knowledge base on the subject of coffee.

Team Image
Blog Image

25 June 2026

Brazilian Coffee: The Ultimate Guide

It's no secret that Brazil is the world's largest coffee producer by a large margin. And it's been that way [...]

Blog Image

20 June 2026

Best Ninja Espresso Machine: Comparing Luxe Cafe Models

I’m thoroughly impressed with the Ninja Luxe Cafe series. Hence this guide to the best Ninja espresso machines. Although there [...]

Blog Image

18 June 2026

Eritrean Coffee Ceremony: Tradition, Steps and Cultural Meaning

Located in East Africa, Eritrea is a small country with a big personality. And as with its neighbor, Ethiopia, there's [...]

Blog Image

14 May 2026

Fully Automatic Coffee Machine Mold Test: Do Fixed Brew Groups Stay Clean?

For years, I’ve been complaining: a fully automatic coffee machine with a built-in brew unit is impossible to clean properly! [...]

Blog Image

14 May 2026

Best Self-Cleaning Coffee Maker in 2026: My Top 10 Picks

I'm aware that many of you are on the lookout for the best self-cleaning coffee maker. But I have some [...]

Blog Image

25 April 2026

Café Con Hielo: Iced Coffee Recipe & Preparation à la España

There can be little doubt that in countries with warm climates, coffee is best served chilled. While northerners call for [...]

Blog Image

20 April 2026

What Is Rüdesheimer Coffee? The German Answer to Irish Coffee

Rüdesheimer coffee is Germany’s answer to Irish Coffee. Instead of whiskey, this Hessian drink features Asbach Uralt – along with [...]

Blog Image

18 April 2026

Roasting Coffee: How Our Beans Reach Perfection

Anyone wondering why coffee is so expensive should treat themselves to a coffee roastery visit and watch the professionals at [...]

Blog Image

18 April 2026

6 Best Places to Buy Coffee Online in 2026

Here at Coffeeness, I'm always encouraging you to buy high-quality coffee beans from reputable coffee roasters. And thanks to the [...]