XLIII Coffee — the roaster formerly known as 43 Factory — is one of Vietnam's most rigorous specialty operations. Out of a Da Nang roastery, it buys single-estate and auction lots most roasters never touch: Ninety Plus estate Geshas, Daterra's Masterpieces auction coffees, a rare Malaysian Liberica. Everything is roasted extremely light on a Giesen W6A. This is a buying program, not a menu.
Lots in the cellar
55
single-origin, spec-sheet sourced
Origins
14
Peru · Colombia · India · Ecuador · Kenya
Roast
Ultralight
Giesen W6A, filter-first
Who XLIII is
XLIII runs a flagship roastery and training space in Da Nang, alongside cafes in Ho Chi Minh City, Hoi An and Hanoi. The rename from 43 Factory Coffee Roaster is cosmetic — XLIII is simply forty-three in Roman numerals — but the operation behind it is among the most disciplined in Southeast Asia.
What sets it apart is how it buys. Each lot arrives with a full spec sheet — origin, farm, variety, crop year, altitude, process — and is roasted light enough to read like the paperwork. For a member calibrating a palate, XLIII is a shelf of reference coffees from producers you would otherwise have to chase across a dozen importers.
The buying program
The spine of the catalog is single-estate traceability, often at the auction tier. XLIII carries lots from Daterra's Masterpieces Auction in Brazil — a native-yeast Guarani, a natural Laurina — and estate Geshas from the Mierisch family across Honduras and Nicaragua. Peru's Nueva Alianza shows up in five varieties at once; Colombia's Cafe Granja La Esperanza brings Sudan Rume, Sidra and Pink Bourbon.
It is the kind of range that only makes sense if the buyer is cupping obsessively and roasting to preserve, not to standardize.
Beyond arabica
Two threads mark XLIII as a restless buyer. The first is Ninety Plus — Panama estate Gesha processed through their proprietary Criolic method, an anaerobic ferment that pushes yuzu, custard apple and jasmine to an intensity most coffees never reach.
The second is Malaysian Liberica — a different species entirely, grown near sea level in Johor and fermented anaerobically for weeks. Banana, sarsi, cocoa: it tastes nothing like arabica, and almost no specialty roaster carries it. XLIII carries three versions.
Lots worth knowing
Full lineup →On the Process Spectrum
XLIII refuses a single corner. Its clean washed Geshas anchor the Clean side, the berry-forward naturals lean Fluid, but what marks the house is the Experimental edge — Criolic ferments, anaerobic Liberica, native-yeast Daterra lots.
Washed Geshas — Mierisch, Nueva Alianza, CGLE. The everyday clarity.
Chocolate-and-nut lots like the washed Peru Typica/Caturra.
Berry-stacked naturals — the Nueva Alianza Sidra, Daterra Laurina.
Ninety Plus Criolic, Malaysian Liberica, native-yeast ferments. The signature.
Da Nang, Vietnam
See the full lineup in the cellar — every estate, auction lot and ferment, with member notes on how each one brewed. →
To see which coffees you can order through Cascara, explore the current Draft. The full roaster catalog does not imply current Draft availability.
Common questions
Is XLIII Coffee the same as 43 Factory?
Yes. XLIII is 43 Factory Coffee Roaster, renamed — XLIII is forty-three in Roman numerals. Same Da Nang operation, same buying program, same rigor; just the current name.
Where is XLIII Coffee?
The flagship roastery and training space is in Da Nang, Vietnam, with cafe locations in Ho Chi Minh City, Hoi An and Hanoi.
What makes XLIII different?
It buys like a competition roaster. The program leans on full traceability, single-estate lots and auction coffees — think Daterra's Masterpieces auction and Ninety Plus estate Geshas — roasted extremely light on a Giesen W6A. The range runs from clean washed Geshas to experimental ferments and a rare Malaysian Liberica.
Does XLIII roast Vietnamese coffee?
XLIII is a Vietnamese roaster, but its specialty program is sourced globally. The lots catalogued here are mostly imported single origins — Ethiopia, Panama, Peru, Colombia, Kenya, Brazil — rather than Vietnamese robusta.
Can I buy XLIII Coffee through Cascara?
Selected XLIII lots can appear in the Cascara Draft as portions or whole bags. Check the current Draft for availability; the catalog is broader than the stock offered for sale. XLIII also sells through its own shop.
Read next
Big Sur Coffee — Shanghai's Panama Geisha specialist
The Shanghai counterpart: ultralight filter roasting built almost entirely on single-estate Geisha.
Coffee processing methods, explained
Washed, natural, honey, anaerobic — the vocabulary you need to read XLIII's spec sheets.
How to read coffee tasting notes
Why 'yuzu, custard apple, jasmine' is a structured description, not marketing.






