Common Grounds Ottawa: Roast Smarter. Buy Better.

We’re a community sharing knowledge, resources, and insights to help you grow your craft. Whether you’re just starting or running a small operation, you'll find the support and connections you need to roast smarter.

And the best part? Our buying collective solves the cost problem:

Members gain access to a world of exclusive green and specialty lot coffees at the wholesale pricing normally reserved only for those who buy an entire 60kg or 69kg sack.

You get the bulk-sack price, without the bulk-sack commitment.

Learn more about becoming a member
1 1

Limited Quantities

1 lb Ethiopia Djimmah Gr 4 (natural)

Ethiopia Djimmah (Jimma) is a classic, character-driven coffee from the birthplace of Arabica. Grown in the highlands of southwestern Ethiopia and traditionally sun-dried, this Grade 5 offering delivers a full-bodied cup with gentle acidity and earthy depth. Expect notes of dark berries, cocoa, and subtle winey spice. Grounded, expressive, and versatile, Djimmah shines in espresso, americanos, and blends—an authentic taste of Ethiopia's coffee heritage.

$12.67 CAD
$12.67 CAD
Sale Sold out
View full details

Micro-lot Reserve Collection

Ultra-Rare & Micro-Lot Green Coffee

Welcome to our most exclusive reserve - a curated collection of hyper-limited micro-lots and rare botanical mutations sourced directly from pioneering producers. Engineered for master home roasters and specialty roasters seeking uncommon cup profiles, these unroasted green coffees represent the apex of modern processing techniques, high-altitude terroir, and rare genetics.

From cutting-edge controlled fermentations to legendary botanical treasures grown in tiny yields, every lot in this vault delivers remarkable density, pristine clarity, and extraordinary sensory balance. Available only in small quantities - once a lot is gone, it is gone until the next harvest.

What You’ll Find in This Collection

  • Experimental Fermentations: Innovative yeast, thermal shock, and fruit-cultured fermentations designed to push sensory boundaries.

  • Rare Varieties & Mutations: Hard-to-find genetics like Bourbon Rey, Pink Bourbon, and Geisha grown in micro-climates.

  • Extreme Terroirs: High-elevation crops (1,900–2,000+ MASL) harvested for maximum bean density and complex sugars.

  • Complete Traceability: Direct transparency down to the farm, elevation, process, and exact cupping score.

Roaster’s Tip: These dense, high-altitude green beans shine brightest at a light to light-medium roast profile to preserve delicate florals, vibrant acidities, and pristine processing notes.

Intro to Home Roasting

1 4