The Angry Roaster Coffee Co.
OREA - O1 Brewer
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Spotted: The brewer that proves good things really do come in small packages.
Meet the OREA O1 – affectionately known as Baby O. A compact unibody flat bottom brewer designed for achieving the perfect single cup brew. Consistent. Fast. Packable. Versatile. And now available in limited edition colours, because even your coffee gear deserves a wardrobe update.
Why another brewer? Because you asked for it. And we listened. Small brewers excel where bigger ones simply can't – better for small doses, easier for travel, and infinitely more precise when you're brewing just for yourself. A smaller device allows the kettle spout to get closer to the coffee bed, giving you more control over water application and agitation. Less material means less heat loss. Less weight means more space in your bag. It's physics, darling.
The Materials: Impeccably clear. Our first plastic brewer was clear – but not quite as exquisite as the O1. It took nearly five years to find the right manufacturer that cares about quality as much as we do. The attention to detail in tooling design, polishing, and injection yields a perfect object with no injection or flow marks. The best quality plastic brewer in the industry – period. Clear like glass. Durable like armour. Made from a single piece of 100% food‑safe, BPA‑free Eastman Tritan plastic, polished to perfection and manufactured with care in a family‑run boutique factory in Taiwan.
The Open Bottom: Our original OPEN bottom design provides a ridge for the flat paper to stand atop – the perfect balance of support and space. The paper bends naturally through the middle, encouraging a more central flow of water through the coffee bed. Candy‑like acidity without sacrificing balance, sweetness, and body. A masterpiece that has been much duplicated but not yet replicated.
Supremely Consistent: This design has been praised for years for its consistency brew‑to‑brew. It's the design where we interfere least, letting gravity dictate how water flows and how the bed behaves. The profile sits somewhere between conical and traditional flat brewers – brighter and clean acidity, but a lot of balance. Lighter, more tea‑like body. If you're after thicker body, we recommend our V4 or Z1 brewers.
Brew Wave: Compatible with traditional 155 WAVE sized paper / small WAVE paper. Easy, fast, and available everywhere. More bypass, more airflow, narrower bed – a less concentrated brew.
Brew Flat: Compatible with small 155 OREA Flat Filters / small 155 Sibarist FAST Flat Filters. Less bypass, wider bed, juicier cup. More delicious.
Specifications:
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Origin: Made in Taiwan
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Capacity: Best for 10–18g coffee (160–300ml liquid); can work as low as 8g or as high as 20g
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Size: 5.9cm tall × 10cm at widest point of base
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Weight: 52g – super lightweight and portable
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Materials: Transparent, durable, BPA‑free TRITAN plastic with a thick 3mm+ insulating wall
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In the box: OREA O1 Brewer + Guides
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Compatible Negotiator: V3 and V4 narrow negotiator
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Compatible paper: 155 wave papers, or small Flat Paper
