Single-origin roastworks · Brooklyn Navy Yard · est. 2019
The curve
is the recipe.
We log every roast at two-second resolution — charge, turning point, first crack, drop. Same lot, different curve, different cup. Torrefaction No. 4 publishes its roast data and roasts to it.
The roast lab · instrument 04
Drag the drop point.
Taste the difference.
This is a real bean-temperature curve from our 12 kg drum. First crack is fixed by physics; where you end the roast is the decision. Slide the drop marker — color, Agtron, flavor and brew method follow.
From cherry to cup
Six stations.
Every number logged.
Coffee is a chain of decisions made by different hands on two continents. These are the six we track, and the numbers we hold each lot to.
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Cherry
Worka Sakaro smallholders pick each tree three times a season. Only crimson, fully ripe cherry makes the lot — sugars peak, then fall fast.
24 °Bx at picking
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Ferment & wash
Thirty-six hours underwater in tile tanks, then graded in channels by density. The heavy beans sink; the cup gets cleaner.
36 h wet ferment
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Dry & rest
Fourteen days on raised beds, turned hourly, down to 10.8 % moisture. Then two months of reposo in parchment before export.
10.8 % moisture
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Roast
Charged at 204 °C, dropped where the curve says so. Every batch is logged at two-second resolution and archived — the chart above is lot 26-07-EG.
2 s log resolution
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Degas
Carbon dioxide leaves the bean for days after the roast. We ship on day three; filter peaks around day seven, espresso closer to day ten.
Ships day 3
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Cup
Every batch is cupped blind at 24 hours against the control roast. Drift more than half a point on the SCA scale and the batch doesn’t ship.
±0.5 cupping tolerance
The monthly drop · No. 31
One coffee a month.
Roasted to its curve.
July is Ethiopia — Gedeb, Worka Sakaro. Washed heirloom grown at 1,900–2,200 m, dropped at City+ (Agtron 62) for apricot, bergamot and a cane-sugar finish. Your bag ships with a printed card of its batch’s actual curve.
- 250 g whole bean, kraft, one-way valve
- $22/mo pause or cancel any month
- Day 3 roasted Tuesday, shipped Wednesday