Learn — Origin
A Complete Guide to Thai Coffee:
Regions, Varieties, and What to Expect
Northern Thailand and southern Thailand produce two entirely different products.
Two Different Products
Thailand is both a specialty Arabica origin and a mass-market Robusta producer — and these two industries exist in entirely different parts of the country, at different altitudes, growing different species, for completely different markets. Understanding which Thailand you are buying from is the first thing any buyer needs to know.
Northern Thailand
Specialty
Arabica
Flavor character
Southern Thailand
Commercial
Robusta
Flavor character
Simple Coffee sources exclusively from Northern Thailand. Everything below describes the northern specialty Arabica industry — its regions, its varietals, and what each one produces in the cup.
Production by Region
Where Northern Thailand's Coffee Comes From
Northern Thailand's four primary growing provinces each produce a distinct profile. Chiang Rai dominates by volume and is the closest to international specialty benchmarks. Chiang Mai produces the highest proportion of Catimor and is Simple Coffee's primary source region. Nan Province is smaller, remoter, and produces the deepest, most chocolate-forward profiles. Mae Hong Son is the most isolated and the least commercially developed — specialty attention there is recent and growing.
Region by Region
The Four Northern Provinces
Northern Thailand — Primary Region
Chiang Rai
4,822 tons annually · 99.25% Arabica
Thailand's Arabica center by volume and reputation. The cooler temperatures and higher altitude at the northern border with Myanmar produce coffees with bright, expressive acidity — closer in character to East African and Central American specialty coffee than to the typical Southeast Asian profile. Processing experimentation is more advanced here than any other Thai province, with honey, natural, and anaerobic lots now appearing from specialty producers. Of the 4,850 tons produced in Chiang Rai annually, 4,822 are certified Arabica — a remarkable consistency.
Flavor profile
Best brew methods
Pour Over · Espresso · AeroPress
Northern Thailand — Simple Coffee Primary Source
Chiang Mai
3,203 tons annually
Simple Coffee's primary supply region. Chiang Mai's lower altitude range compared to Chiang Rai produces Arabica with more sweetness and body and slightly less brightness — a profile that works exceptionally well for medium and med-dark roasts suited to espresso and milk-based drinks. The province grows primarily Catimor, which Thai terroir has notably elevated beyond the varietal's typical reputation. The region also produces a Peaberry variety — a naturally occurring single-bean cherry that concentrates flavors, producing bright citrus, dark chocolate, and clean acidity.
Flavor profile
Best brew methods
Pour Over · Espresso · Moka Pot
Simple Coffee sources from this regionNorthern Thailand — Forest & Everest Region
Nan Province
936 tons annually
Nan is the most distinctive of the four northern provinces — remote highland forest terrain with deep soils and cold nights that slow cherry development and concentrate sugars. The natural processing method dominates here: whole cherries dried slowly in highland air develop the intense sweetness and body that defines Nan's profile. This is where Simple Coffee's Forest product and Everest product originate. Smaller volume, longer drying times, and less commercial infrastructure than Chiang Rai or Chiang Mai — but the cup quality justifies the sourcing complexity.
Flavor profile
Best brew methods
French Press · Pour Over · Moka Pot
Forest · Everest sourced hereNorthern Thailand — Emerging Region
Mae Hong Son
~420 tons annually (specialty segment growing)
Thailand's most western and most isolated growing province, bordering Myanmar along steep mountain terrain. Mae Hong Son has been growing coffee longer than most people realise — highland communities have cultivated Arabica here for decades — but the specialty market's attention is recent. Deep soils and cold conditions produce a distinctly earthier, smoother profile than Chiang Rai or Chiang Mai. Lower perceived brightness, fuller body, and Earthy-to-Nut Continuum positioning. The province is gaining specialty credibility as more producers invest in improved processing infrastructure.
Flavor profile
Best brew methods
French Press · Pour Over · Cold Brew
Thai Varietals
The Three Arabica Varietals Grown in Northern Thailand
Northern Thailand grows three Arabica varietals. Each has a different history, a different flavor ceiling, and a different reputation in the specialty market. Thai terroir — the combination of soil, altitude, rainfall, and temperature — has notably improved the performance of Catimor beyond what most international buyers expect from the varietal.
| Varietal | Character | Notes |
|---|---|---|
| Catimor | Arabica × Timor hybrid. Disease-resistant. Dominates northern Thailand — most Chiang Mai and Mae Hong Son production. Fruit-forward, naturally sweet, approachable. Specialty ceiling lower than Typica/Bourbon but elevated by Thai highland terroir. | Both Simple Coffee label types — 100% Arabica and Arabica Catimor — draw from northern Thailand. The Catimor sub-label on the bag is a transparency marker, not a quality downgrade. |
| Typica | The classic Arabica varietal. Elegant, complex, higher sweetness potential. More susceptible to coffee leaf rust than Catimor. Found primarily in Chiang Rai alongside Bourbon. Represents the highest flavor ceiling Thai Arabica currently achieves. | Less common in commercial volumes — higher care requirements make it a premium lot rather than an everyday supply varietal. When present in Simple Coffee products, it is noted in the product description. |
| Bourbon | A natural mutation of Typica. Named for Réunion island (formerly Bourbon) where it was first cultivated. Complex, sweet, heavier body than Typica. Found in Chiang Rai. More productive than Typica but still significantly more labor-intensive than Catimor. | Relatively rare in northern Thailand's commercial output. Present in small quantities in Chiang Rai's specialty lots. A Bourbon-dominant Thai lot commands premium pricing and limited availability. |
Traditional Thai Coffee
Oliang — What It Is and Why It Is Different
Anyone who has visited a Thai market or traditional café will have encountered oliang — the traditional Thai iced coffee served in plastic bags with condensed milk or palm sugar. It is important to understand what it is and what it is not.
Dark-roasted Robusta through a cloth sock filter
Oliang is made from dark-roasted southern Thai Robusta — sometimes blended with corn, sesame, or soybeans — brewed through a traditional cloth sock filter, and served heavily iced with sweetened condensed milk or palm sugar syrup. It is bold, bitter, high-caffeine, and sweet. It is a cultural institution, not a specialty coffee product. The flavor profile is Earthy-Roast on the Continuum, with body from the unfiltered brew and sweetness entirely from the added condensed milk. It has nothing in common with the northern Thai Arabica that Simple Coffee sources and roasts — same country, different species, different altitude, different industry, different cup entirely.
Simple Coffee + Thailand
Why Northern Thailand Is Our Only Source
Simple Coffee has sourced exclusively from Northern Thailand since opening in Bangkok in 2013. The decision was not made for marketing reasons — it was made because the Chiang Rai, Chiang Mai, and Nan Province growing regions consistently produce the Arabica flavor profiles our roasting approach is designed to develop. Direct trade relationships with producers in these regions mean we know the harvest season, the processing method, and the lot character before each bag is roasted.
Northern Thailand's Arabica industry has matured significantly in the past decade. International buyers who previously sourced Thai coffee as a curiosity now include it in serious specialty rotations. The region's altitude, varietal diversity, and growing investment in processing infrastructure position it to continue improving. Simple Coffee has been part of that story from the Bangkok end — roasting Thai-origin lots in small batches, publishing the source region on every bag, and building the customer base for Thai specialty coffee in the city where most of it gets consumed.
Northern Thailand produces world-class Arabica. It has done so for decades. Simple Coffee has been roasting it in Bangkok since 2013 — and putting the region, not just the country, on every bag.