Enjoy Khe Sanh Coffee on Your Cave Expedition with Oxalis

Khe Sanh in Quang Tri was once known as one of the fiercest battlefields of the Vietnam War. Bombs devastated its mountains, and agriculture was paralyzed for decades. Even after the war, the land remained scattered with unexploded ordnance, making farming nearly impossible. For many, this place symbolized loss and destruction.

Yet on this seemingly unrevivable land, the Pa Co – Bru–Van Kieu communities planted the very first coffee trees again. They cleared the land by hand, removed debris piece by piece, reopened water sources, and cultivated Arabica. Over time, the once-barren hills transformed into lush green slopes—symbols of resilience, renewal, and a remarkable journey of transformation.

With such a meaningful story of revival—and the desire to bring local products closer to international travelers—Oxalis Adventure chose Khe Sanh coffee to serve on its cave tours. Oxalis proudly supports local farmers by purchasing and promoting this symbolic Arabica, offering its rich flavors to guests at campsites deep in the forests of Quang Tri.

Today, when joining an Oxalis cave expedition, travelers not only witness the untouched beauty of Quang Tri but also enjoy a steaming cup of Khe Sanh coffee right in the heart of the mountains.

Khe Sanh coffee on an Oxalis tour.

Quality and Flavor of a Specialty Coffee

Oxalis selects Khe Sanh Arabica primarily for its quality and its universal appeal to international guests. Khe Sanh Arabica features a bright, citrus-plum acidity, high natural sweetness, very mild bitterness, and subtle notes of dark chocolate and herbs. Its medium, smooth body makes it pleasant and easy to drink for most travelers.

This distinct profile comes from Huong Hoa – Khe Sanh, located on the slopes of the Truong Son Range at 400–670 m. Although it does not reach the high-altitude criteria of regions above 1,200 m, Khe Sanh offers rare compensating climatic advantages: a 7–9°C difference between day and night that slows fruit ripening, allowing sugars and acids to develop. The area receives abundant rainfall—about 2,262 mm per year—and is nourished by clean headwaters from the Ben Hai and Rao Quan rivers.

Its ancient basalt soil, rich in minerals and well-drained beneath the Truong Son forest, creates beans with balanced sweetness, depth, and a signature Arabica finish. Because the harvest season overlaps with the rainy season, Khe Sanh farmers use the washed method: 12–36 hours of fermentation, thorough mucilage removal, and drying to 10–12% moisture. This results in a clean, refined cup—gentle acidity, no harshness.

For Oxalis, coffee is not just a drink—it is part of the experience. Mornings at the campsite begin with birdsong, falling leaves, and the soft aroma of freshly brewed Arabica drifting through the cool air. A warm cup at that moment gives travelers clarity and energy before entering another day of exploration.

In misty valleys, beside cold mountain streams, or right at the entrance of an immense cave, the taste of Khe Sanh Arabica becomes even fuller, sharper, and turns each morning into a highlight of the tour.

Coffee gardens of Khe Sanh – Quang Tri

Cultural Heritage of the Pa Co – Van Kieu Communities

Beyond its flavor, Khe Sanh Arabica carries a powerful cultural narrative. Its story began in 1926, when French botanist Eugène Poilane crossed the Truong Son Mountains seeking new land for coffee. He stopped in Khe Sanh and chose it as the place to plant the first Arabica seeds. From there, Khe Sanh coffee once traveled across oceans to European markets.

But war arrived. The 1968 Tet Offensive turned this region into a center of relentless combat. Coffee hills were burned, the land torn apart, and explosives buried everywhere. The coffee industry vanished almost entirely. The hills that once smelled of Arabica now smelled only of gunpowder.

Between 1990 and 1994, Arabica was reintroduced to these mountains, and Khe Sanh slowly returned to life. Arabica grows well here—disease-resistant, climate-fit—and became the “lifeline” for the first regenerated plantations.

The Pa Co and Bru–Van Kieu people, who have lived on the Truong Son Range for generations, dug out bomb craters, cleared metal debris, restored the land, and planted Arabica seedlings. They know every hillside’s soil, understand how to care for the trees in heavy mist and forest winds, and it is their hands that created the Arabica Khe Sanh travelers taste today.

Because of them, today’s Khe Sanh coffee carries the scent of Truong Son forests and the story of resilience and rebirth. That is why it is often called “peace coffee”—a symbol of transformation from devastation to hope.

Wet-processing techniques of the Pa Co – Van Kieu

Sustainable Tourism and Support for Local Communities

Choosing Khe Sanh coffee is also part of Oxalis’s long-term commitment to sustainable tourism. Using local products directly strengthens the Central region’s economy and supports livelihoods for coffee-growing households.

Coffee is the primary income for thousands of families in Khe Sanh – Huong Hoa. Thanks to high-quality cultivation, many households have escaped poverty, achieved stability, and ensured education for their children. Bru–Van Kieu women play a key role in the coffee value chain—from tending farms and harvesting ripe cherries to sorting and working in cooperative groups. With training and participation in production decisions, they gain both stable incomes and stronger voices within families and communities.

Visitors enjoy Khe Sanh coffee during the Hang En tour.

By incorporating this coffee into its tours, Oxalis elevates local products and introduces them to travelers as a cultural experience told through each Arabica bean. This connection creates jobs, increases sustainable income for farmers, and encourages forest protection, soil conservation, and clean agricultural practices.

It is this combination of quality, story, culture, and sustainability that makes Khe Sanh coffee a meaningful and fitting choice for Oxalis.

The Oxalis Experience.