Single Origin or Blend: Which and When
This is the first fork you hit when buying coffee. Specialty culture tends to treat single origin as the superior option, but in practice they are answers to different questions.
Definitions first
Single origin means coffee from one source. What counts as "one" varies by seller, though: it might be a country, a region, a single farm or a specific lot.
The narrower the scope, the more distinctive and the more expensive. A bag marked simply "Ethiopia" and one marked with a region, washing station and lot carry very different amounts of information.
A blend is a mix of different coffees. The important thing is that mixing is not a way of hiding quality: a good blend combines strengths to achieve a balance no single component reaches alone.
When single origin wins
If you want to experience what an origin tastes like, single origin is the only option. The jasmine of an Ethiopian, the grapefruit acidity of a Kenyan, the earthiness of an Indonesian: all of it blurs the moment you blend.
It is also better for tasting practice. The flavors sit separately enough that naming them is possible. A blend layers several aromas at once, which is difficult to take apart when you are learning.
The drawbacks are real. Harvest and lot variation mean the same name can taste different next time. And because the character is pronounced, brewing mistakes show up just as clearly.
When a blend wins
If you want the same cup every day, a blend serves better. When a component runs out the roaster substitutes something similar to preserve the overall profile, so the coffee stays recognisable all year.
For milk drinks a blend is close to the correct answer. In a latte or cappuccino the sweetness and fat of milk cover delicate aromatics, and the floral notes you paid for in a single origin simply disappear. Blends are built to survive that.
Blends dominate espresso for a similar reason. High-pressure extraction amplifies faults, and a blend components tend to cover each other weaknesses, giving a wider margin for error.
How blends are built
A good blend is designed with roles rather than thrown together. Three components is the common structure.
The base makes up more than half and provides body and sweetness: Brazil or Colombia are typical, being dependable and even. A second component adds acidity to lift the whole thing, and a small proportion of something distinctive supplies the aromatic hook.
When the mixing happens matters too. Pre-blending roasts the green coffees together, which is simpler but compromises, because each component wants a different roast. Post-blending roasts each separately and combines afterwards: more work, but each component can be roasted to its own optimum.
Judging a blend
The persistent myth is that blending hides poor coffee. That happens, but a good roastery blend is a deliberately designed product.
The tell is disclosure. A roaster who publishes the components and proportions is confident in the design. A bag that says only "premium blend" gives you nothing to evaluate.
A stated purpose is another good sign. "For espresso" or "works with milk" means someone tested it in that context.
Keep both
There is no general answer. It depends on how you drink and what you want that day.
The practical arrangement is to keep one of each: a blend for weekday mornings when you do not want to think, and a single origin for a weekend brew you can pay attention to. That covers both consistency and exploration.
Either way, recording the coffee details with your ratings reveals where your preferences actually lie. It is surprisingly common to discover you have been rating a particular blend above the expensive single origins.