The Factory That Last Roasted Coffee in 1995

The Van Nelle Factory was built in the 1920s in Rotterdam in the New Objective architectural style — one of the first buildings in the world where concrete was the primary construction material. It was designed and built to house the processing of coffee, tea, and tobacco for the Van Nelle brand: a Dutch consumer goods company that dominated its categories in the early 20th century. At its peak, the Van Nelle Factory was the largest coffee roastery in all of Europe.

In 1995, the last coffee bean was roasted in the building. Production of the Van Nelle brand moved elsewhere. The factory stood — its extraordinary glass façade, its wide-span concrete floors, its UNESCO World Heritage listing secured in 2014 — and became home to approximately 200 creative and innovative companies. No one thought it would ever roast coffee again.

Then Rob Clarijs arrived.

Rob Clarijs: From Copenhagen Epiphany to Coffee Masters Champion

Rob Clarijs trained as a civil engineer. In 2012, he was in Copenhagen for an internship. Coffee, at that point, was nothing more than morning fuel. Then he walked into the same café for the second time in a week and the barista recognised him and remembered his order. "That tiny gesture made me realise the value of what a cup of coffee can bring," he has said. "From that moment on I knew: I also wanted to work in coffee."

Almost a decade of specialty coffee career followed — building brands, competing in competitions, travelling to roasteries across Seoul, New York, Paris, and Kuala Lumpur. In 2019, he entered Coffee Masters London — one of the specialty coffee world's most prestigious head-to-head competition formats, held at the London Coffee Festival — and won. It was the crowning achievement of a competition career that had taken him from civil engineering to the stage of international specialty coffee.

Two years later, in 2021, the opportunity arose to open a roastery in the Van Nelle Factory. The connection was immediate and obvious: a building whose identity was built on coffee, whose concrete architecture had defined European commercial coffee processing for half a century, now housing a precision specialty roastery. "Being able to do something else every day" — Rob has described the restlessness that drove each new project in his career. In the Van Nelle Factory, he found the space for a project that could grow indefinitely.

The Name: Concrete Decisions

A Matter of Concrete — AMOC — carries three simultaneous meanings. First: the Van Nelle Factory itself was one of the first buildings constructed with concrete as the primary material, and its architectural character — the industrial clarity, the rational organization of space, the transparency of the glass facade — is defined by concrete as a philosophy of building. Second: Rob's background in civil engineering gave him a professional relationship with concrete as a material and a way of thinking — structural, load-bearing, precise. Third, and most important: the brand name encodes AMOC's operating philosophy. "Rob drives his business forward through a matter of concrete decisions that are all based on hard data," as CoffeeVine put it. No sentiment, no hype, no bias — just data, blind cuppings, and measurable quality. Niet lullen, maar poetsen — no nonsense, just deliver — is the Rotterdam saying that Rob invokes to describe the ethos.

His wife designed the branding — clean, minimal, confident — that matches this philosophy exactly. The name and the visual identity are entirely coherent, and both are entirely coherent with the coffee inside.

Blind Cupping: The Only Way to Select Without Bias

Every coffee that AMOC roasts is selected through blind cupping — meaning Rob and his team taste coffee without knowing its origin, producer, price, or any other contextual information that might bias their assessment. Blind cupping is the most rigorous quality selection process in specialty coffee: it eliminates the halo effect of famous farms, the influence of producer relationships, and the tendency to score higher what costs more or comes from a prestigious origin. If the coffee is in the cup, it earns its place at AMOC. If it isn't, no story or reputation rescues it.

This process produces AMOC's two product lines: Classic — balanced, clean, and consistent, designed for daily drinking — and Uncommon — rare varieties, innovative processes, or unusual sensory profiles that reward more adventurous palates. The Uncommon line is where AMOC pushes furthest: lots like the anaerobic Colombian Pink Bourbon from Julián Calderón that CoffeeVine described as "fresh and sparkling with notes of rhubarb soda."

The AMOC Jar: Packaging as Philosophy

AMOC's packaging — the AMOC Jar, a reusable container made from recyclable PET — is as deliberate as everything else in the operation. Standard coffee bags are single-use; AMOC Jars are designed to be returned, refilled, or recycled. The decision reflects Rob's engineering background: design a system that works, rather than defaulting to what everyone else does. It also reflects the broader AMOC philosophy of not greenwashing — of making real decisions with measurable environmental impact rather than claiming sustainability through marketing language.

"The Van Nelle Factory once used to be the biggest coffee factory in the country and now houses about 200 mostly creative and innovative companies. This is where all the inspiration I had collected in about a decade came together." — Rob Clarijs, AMOC