TR4 – The Reliable Backbone of Vietnam’s Coffee Fields

If you’ve ever enjoyed a bold, balanced, and full-bodied cup of Vietnamese Robusta, chances are it came from a tree named TR4.

👨‍🌾 Developed by Vietnamese agricultural scientists, TR4 (short for Trường Sơn 4) is more than just a clone. It’s a symbol of modern Robusta farming—built for both resilience and productivity.

🔍 Why do farmers love TR4?

✅ High Yield
🌿 More cherries per tree, year after year. Farmers can rely on TR4 for stable and profitable harvests.

✅ Disease Resistance
🛡️ Excellent natural defense against nematodes and tolerance to drought—a top choice for a changing climate.

✅ Strong Tree Structure
🌳 Deep roots and firm stems make TR4 resistant to wind and rain damage, reducing loss during extreme seasons.

☕ What does TR4 taste like?

When processed properly—especially as washed or wet polished—TR4 offers:

• ⚖️ Full-bodied structure

• 🌰 Bitter yet clean finish

• 🪵 Nutty, earthy base notes

• 🔥 Consistent roast behavior

Ideal for:

• Traditional Vietnamese brewing (phin)

• Espresso blends

• Clean Robusta for export or blending

🌍 Where is TR4 grown?

📍 TR4 is dominant across Đắk Lắk, Gia Lai, and parts of Lâm Đồng, especially on red basaltic soils where it thrives best.

At Halio Coffee, we partner with growers cultivating certified TR4 under optimal conditions—because great coffee starts at the root.

📝 In a world of changing weather and rising demand, TR4 continues to be the strong, silent backbone of Vietnam’s Robusta landscape.