Putra writes for Indonesia Specialty Coffee — origins, cupping, processing, and the trade behind every cup.
Putra Siregar leads coffee curation and content at Indonesia Specialty Coffee. He writes practical guides on green-coffee handling, roasting and brewing — from diagnosing defects like mold to dialing in espresso — helping roasters and coffee lovers get the most from Indonesian beans.
Putra Siregar
The 90-Point Indonesian Coffee Mamasa Arabica from West Sulawesi has firmly established its reputation for quality. While a typical specialty…
Accuracy, speed, and resilience – these are the keys to winning a Cup Tasters competition. While many assume it’s all…
Green Sumatra Mutu Batak Lintong, a premium coffee from the highlands of North Sumatra. Its unique wet-hulled process creates a…
The air in any Indonesian city today carries a familiar, sweet, and comforting aroma. It’s the scent of coffee, milk,…
You pick up a beautiful bag of coffee. The brand name is bold, the design is stunning, and it promises…
The Specialty Coffee Association of Japan (SCAJ) is once again hosting one of the biggest coffee events in Asia. This…
Remembering a Decade of World Barista Champions Ahead of WBC 2025 in Milan The World Barista Championship (WBC) is the…
Coffee Roasting Charge Temperature & Grind Size Calculator Roasting coffee is a science of heat transfer, density, and timing—but getting…
Coffee is one of the most consumed beverages in the world, second only to water and tea. While more than…
Head of Sourcing · Indonesia Specialty Coffee
Putra Siregar leads coffee curation and content at Indonesia Specialty Coffee. He writes practical guides on green-coffee handling, roasting and brewing — from diagnosing defects like mold to dialing in espresso — helping roasters and coffee lovers get the most from Indonesian…
Our cupping team is ready to build a profile around your brand — from single-origins for specialty cafés to consistent blends for export.
