The OREA O1 Brewer Steel – Obsidian  is a beautifully engineered flat bottom brewer designed for achieving the perfect single cup brew. Consistent, fast, packable and versatile. 

Crafted from durable stainless steel with OREA’s signature minimalist aesthetic, the O1 combines precision engineering with modern specialty coffee performance. Its compact flat-bottom design promotes even extractions and balanced flavour profiles, helping produce clean, sweet and expressive cups with minimal effort.

The O1’s open bottom geometry promotes faster drawdown speeds and reduced channeling, making it especially effective for light roast coffees where clarity and flavour separation are key.  It is also very flexible, you can brew in various ways and use different types of paper.

The double walled stainless steel construction also offers excellent thermal stability and durability, making it ideal for both home brewing and professional café environments.

Finished with a ceramic-coated interior and a durable matte black exterior finish, the brewer delivers a premium tactile feel alongside a timeless design that sits beautifully within any coffee setup.

Product Features:

• Fast-flow flat-bottom brewer for clean, balanced extractions

• Excellent clarity and flavour separation

• Durable double-wall stainless steel construction

• Insulated air gap for improved thermal stability

• Open Bottom geometry for fast, consistent drawdown

• Ceramic-coated interior and matte black exterior

• Compatible with OREA Regulators and Negotiator accessories

• Compact and lightweight for everyday brewing

• Exceptional thermal stability

• Premium Obsidian black finish

• Hand washing is recommended to preserve the coating.

• Fits Kalita Wave 155, OREA Wave, OREA Flat Small 155, and SIBARIST Flat Small filters

Product specs:

• Colour: Obsidian (Black)

• Material: Stainless steel

• Brewer Type: Flat-bottom pour over dripper

• Capacity: Best for 10-18G of coffee (160-300ML liquid) but can work as low as 8G or as high as 20G

• Size: 6CM tall x 10.5cm at widest point of base.

• Weight: 130 grams (4.5oz).