O1 Brewer - CLEAR

O1 Brewer – Clear
Small but mighty.

The O1 is OREA's compact brewer for the perfect single cup: consistent, fast, packable, and versatile. It uses the original open bottom design, letting the paper filter bend naturally through the middle for a more central water flow and a candy-like acidity, with balance, sweetness, and body intact.

A smaller brewer suits small doses (10–18g) better. It lets you get the kettle spout closer to the coffee bed for more control over water and agitation, and it takes less heat out of the brew. It's also lighter and easier to pack, so it travels well.

Each brewer is moulded from a single piece of genuine Eastman Tritan plastic. It's clear like glass, BPA-free, food-safe, made in the USA, and manufactured by a family-run boutique factory in Taiwan. No moving parts, no injection marks, no flow marks. Just a clean, simple, easy-to-clean design.

Features

• Unibody single-piece construction with no moving parts
• Original open bottom for a more conical flow and central water path
• Optically clear Tritan, a nod to our first transparent V3 with the compact size of the V2
• Best suited to lighter, more tea-like brews. For a thicker body, try the V4 or Z1.

Filters

• Wave: traditional 155 wave size or OREA's small wave paper. More bypass and airflow, less concentrated.
• Flat: small 155 OREA flat filters or small 155 Sibarist FAST flat filters. Less bypass, wider bed, juicier cup.

Details

• Origin: Made in Taiwan
• Capacity: best for 10–18g coffee (160–300ml). Works from 8g to 20g.
• Size: 5.9cm tall × 10cm at the widest point of the base
• Weight: 52g
• Material: transparent Tritan plastic with a 3mm+ insulating wall
• In the box: O1 Brewer, guides

Brewing for two, or using more than 18g? The O2 has more room.