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Origins 20 January 2026 5 min read

Sourcing the Loudmouth

How a dark roast blend that punches you in the face actually gets made

LM

Dark roast gets a bad reputation in specialty circles. The argument goes: if you roast dark, you’re hiding inferior green. You’re burning away the origin character that you paid a premium to source. You’re serving the preferences of people who haven’t been educated to appreciate lighter profiles.

This is a real argument made by real people who should know better.

The case for roasting dark on purpose

Not every coffee wants to be light. Brazil Cerrado naturals, processed for body and chocolate depth, lose their best qualities when you pull them at the first snap of first crack. The sugars haven’t had time to caramelise properly. The mouthfeel is thin where it should be heavy. The finish is short where it should linger.

The Loudmouth uses two lots: a Brazil Fazenda Serra do Boné natural, and a Sumatran Mandheling from Aceh processed wet-hulled. Both were chosen because they improve with development — because the roast is part of the flavour, not a thing that happens to the flavour.

Why Sumatra

Sumatra is divisive. The wet-hulled process creates an earthy, low-acid profile that splits specialty opinion straight down the middle — half the community loves it, half thinks it tastes like a bag of compost.

We’re in the first half.

The earthy depth from the Mandheling does something specific in a dark blend: it extends the body without adding bitterness. Used correctly — and the percentage matters enormously, we spent six weeks adjusting it one percent at a time — it acts as a foundation that the Brazil sits on top of. Cedar, tobacco, dark chocolate. Not murky. Grounded.

The first version of this blend was too Sumatra-forward by about four percent. We knew within thirty seconds of the first espresso pull. You could taste the roastery floor. Good if you’re into that. Not what we were building.

What “punches you in the face” actually means

It means high extraction yield at standard parameters. It means you don’t need to dial it in for fifteen minutes to get a result that works. It means the shot is dense, not astringent. It means the coffee is doing the work, not asking you to.

Most specialty blends at this roast level are designed for milk. The Loudmouth is designed for black — specifically, for the 6:45am version of you who wants the coffee to be the loudest thing in the room.

The name

It came from a conversation about ska music, the same conversation that gave us the name Rude Boy. The Loudmouth is the track that opens the set — the one that announces what kind of night this is going to be before you’ve had time to decide whether you’re ready.

We liked that. The coffee has the same job.

How to brew it

Standard espresso parameters work fine. If you’re brewing filter, push the water temperature slightly — 94–95°C rather than the 92 you’d use for lighter profiles. The extra heat opens the body without tipping into bitterness. Bloom for forty-five seconds if you’re pouring by hand.

Or don’t follow any of this. It’s good enough that it’ll work without the fussing.