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
Coffee Beyond the Bean Indonesia is celebrated as one of the world’s great coffee nations. From the volcanic soils of…
Generally, it’s a blend of Arabica and Robusta that is roasted Medium-dark to dark for Classic Italian Espresso. This results…
Robusta coffee futures rallied strongly in August 2025, with prices jumping from USD 3,300 per ton on August 1st to…
Post-roast sorting Coffee helps to enhance flavour, consistency, and visual appeal. Because after roasting, some beans can look different, some…
Guide to Brewing Balinese coffee to unlock the unique flavor experience (Sweet Citrus, Chocolate, Floral Aroma, and Medium Body). Originating…
Liberica coffee beans is the third coffee species that serious drinkers and roasters graduate to once they master Arabica and…
England drinks tea because policy, supply, and culture aligned in a precise sequence. Coffee introduced a sober public sphere; tea…
Imagine waking up, craving that perfect, rich aroma of coffee—only to sip a bitter, metallic brew.The culprit? A neglected coffee…
What is Anaerobic Processing? Anaerobic processing is the fermentation of coffee in a completely oxygen-free environment. Instead of being exposed…
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.
