What is the difference between single-origin and blend for cold brew?

When deciding between single-origin coffee and a blend for your next batch of cold brew, you are essentially choosing between a specific narrative and a curated experience. Single-origin coffee comes from a specific geographic location—a country, a region, or even a single farm. Because cold brewing is such an gentle process, it allows the subtle, individual characteristics of these beans—the "terroir"—to really emerge in the cup.

If you choose a single-origin bean from Ethiopia, for example, you might experience the bright, floral, and blueberry notes characteristic of that origin. If you choose a Brazilian single-origin, you might get a sweet, nutty, and chocolatey profile. These coffees are like distinct ingredients in a meal; they provide a pure, focused experience that is perfect for the adventurous drinker who wants to taste the impact of geography and processing on their coffee.

Blends, on the other hand, are the masterwork of the roaster. By combining beans from different origins, a roaster can build a flavor profile that is greater than the sum of its parts. A well-crafted blend for cold brew is often designed to provide a deep, chocolatey base from one bean, a touch of acidity from another, and perhaps a creamy, nutty finish from a third. The result is a consistent, balanced, and highly satisfying coffee that feels "rounded" and familiar.

For many, a blend is the ideal choice for cold brew because the large volume required for this brewing method benefits from the forgiving nature of a balanced blend. It ensures that every glass you pour from your cold brew pitcher is consistent. However, if you are a fan of specialty coffee and enjoy exploring the nuance of different origins, do not hesitate to use single-origin beans. Just be prepared for a different result every time you switch origins, which is often the most exciting part of the process.