I still remember the first time I encountered the Mahlkönig EK Omnia grinder in person—it gave me the impression that coffee grinders across major brands have now entered the era of “micron-level automatic calibration.” Honestly, technological advancement never ceases to amaze me. It also makes you realize just how intense and competitive the coffee equipment space has become. This pursuit of machines that are faster, smarter, and more consistent is clearly shaping the future of commercial grinders.
Not long ago, I came across a coffee equipment brand called Casadio. Having spent years around coffee gear, I was surprised that I had never really paid attention to this brand before. Naturally, it sparked my curiosity, and I decided to dig deeper.
As it turns out, Casadio has quite a long and rich history. Its founder, Nello Casadio, was born on January 1, 1907, in the Imola region of north-central Italy. From a young age, he showed a strong interest in mechanical engineering. In 1948, during the post-war recovery period, the company established its first production workshop at 84 Via Massarenti in Bologna. You might notice that the Casadio logo resembles a trident—this design originates from a trademark registered in 1950, inspired by Giambologna’s famous sculpture Neptune. From that point on, the brand focused exclusively on manufacturing professional espresso machines and grinders.
By the 1960s, with steady economic recovery and growing demand for coffee equipment, Casadio—together with C.S.A.S. Bar—built a new headquarters in 1968. At the time, all production was still done by hand, with around 30 employees handling turning, machining, and assembly. However, in August 1975, Nello Casadio passed away unexpectedly at a relatively young age. The company faced a critical restructuring phase, but thanks to the efforts of his wife Angela, their three children, and the entire team, they reached a significant milestone—launching an integrated grinder with automatic programming capabilities, which was quite advanced for its time.
Casadio’s journey hasn’t been without challenges. In the 1990s, the company was sold to ISA S.p.A. and relocated to Umbria, before eventually returning to Bologna in 1999. Then in 2009, a familiar name entered the picture—Casadio joined Gruppo Cimbali, the renowned Italian coffee equipment manufacturer. Under Cimbali, the brand underwent a transformation in product design, market positioning, and technology. You may notice that some of the machines released after this period share design elements with classic Cimbali equipment. Within the group, Casadio operates as an independent sub-brand, continuing its legacy.
Now, let’s talk about the Casadio Ermes Dual grinder. This model builds on Casadio’s deep expertise in grinder design, combined with the engineering heritage of the Cimbali Group. The result is a new-generation grinder that balances precision with ease of use. It features an advanced micron-level adjustment system and is equipped with 75mm conical burrs, allowing users to switch between espresso grinding and coarser settings suitable for methods like Chemex.
The Ermes Dual comes with a 550g hopper, which conveniently matches standard 500g coffee bags—both practical and visually pleasing. It’s particularly well-suited for home use or small independent cafés.
In terms of design, the grinder has a clean and minimalist look. The lines are smooth and well-proportioned—it’s the kind of machine that looks good at first glance. Honestly, it’s just a good-looking piece of equipment.
The design itself also has an impressive pedigree. The Ermes Dual was designed by Flechtner, the renowned designer behind the iconic Slayer espresso machines. His design philosophy blends modern innovation with handcrafted elements, achieving a harmonious balance between form and function. The body is made from high-quality aluminum, with optional black or white side panels, giving the grinder a sleek and natural finish. Visible screws, exposed bean pathways, and a zero-retention integrated lever all evoke a sense of craftsmanship, reimagined with a contemporary edge.
User experience is enhanced through a full-color display, where every detail of the grind settings is clearly visible and easily adjustable. The screen provides real-time micron-level feedback on burr distance, and you can save your preferred grind parameters with recipe memory functionality. This level of precision ensures consistency across every cup.
Grinding is the foundation of great coffee—it shapes the flavor, sweetness, and overall balance of each cup. That’s why many seasoned coffee professionals will tell you: a great grinder is even more important than the espresso machine itself.