Come Brew Come Share | Q & A How does the size of coffee beans matter?

Let's talk about coffee beans! ☕️✨ Especially the view of Single Origin coffee, there are points we can expect and observe to see how good the coffee bag is!

🏔️ Single Origin what we expect from the seeds.

When we buy Single Origin coffee, we expect the purity and distinctive taste of the source, which comes with high quality control:

1. 📏 Seed size must be uniform (Consistence)

We expect that the coffee beans in the bag should be the same average size, not too many small and large seeds.

What's the problem? If a roaster puts a small seed and a large seed into the same stove:

Small seeds get heated and ripen faster.

Big seeds are heated more slowly because the heat has to reach the center of the seed.

The result is: the roasted coffee has a swinging taste (Uneven Roast) because some are ripe, some are overripe (bitter), and some are not ripe (tasteless or astringent sour).

2. 👨🏻‍🍳 The challenge of roasters

Roasting coffee with a mix of seeds, small and large, is difficult for roasters because:

Slow roasting The roaster must roast slower to try to heat it into the big seeds to catch up with the small seeds.

Get a hard taste. The end result may not be sharp. And the taste will swing easily.

🤝 vs. Blend Coffee (Mixed Recipe)

If it's Blend Coffee (Multi-Source Seed Blend Recipe), a savvy roastery will never do this:

Roast separately and then mix: A good roaster will roast separately, each source of coffee beans, each species, and then mix them later.

Reasons to roast separately

Unevenly cooked. Each coffee has properties (density, moisture) that make it unevenly ripe.

They know where each coffee has the "best time" to roast (for example, this should be milder roasted, this should be darker roasted). Separate roasting will bring out the best taste of each seed before mixing it together for the final taste as needed.

So, seeing Single Origin seeds in uniform size indicates that the precursors have good quality sorting, and the roaster cares about roasting to get the true taste of that source of coffee! 😉

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