The Bosa Brewing Guide: 6 Ways to Brew Colombian Coffee at Home

FEBRUARY 25, 2022

Buy a bag of single-origin coffee and you have bought one coffee. Brew it six different ways and you have tasted six.

That is not marketing. Brewing is extraction, and every device extracts differently. Water temperature, contact time, filter material and grind size each pull a different set of compounds out of the same beans. A paper filter traps oils and gives you clarity. A metal mesh lets them through and gives you body. Pressure concentrates. Ice locks in aroma that heat would otherwise carry away.

So the question is not which method is best. It is which method suits the coffee in front of you, and which one fits the morning you actually have.

This guide covers six. Each has its own full walkthrough — start here to decide where to go.

Quick comparison

Pour-over — Clarity and separation. Best for coffees with acidity worth hearing. 3–4 minutes, hands on.

French press — Heavy body and oils. Best for chocolate-forward coffees. 4 minutes, almost hands off.

Moka pot — Concentration and intensity. Best for darker roasts. 5 minutes on the stove.

AeroPress — Adjustable and forgiving. Best for anything. 2 minutes.

Automatic drip — Volume, unattended. Best for a household. 6–8 minutes, no attention.

Flash brew — Iced, aromatic, bright. Best for bright coffees in warm weather. 4 minutes.

The three variables that matter most

Grind size

Grind controls how fast water reaches the inside of each particle. Finer grind, faster extraction. Every method below specifies a grind, and getting it wrong is the single most common reason a good coffee tastes bad. Sour and thin means under-extracted — grind finer. Bitter and drying means over-extracted — grind coarser.

Water temperature

The window is 195–205°F (90–96°C). Water straight off a rolling boil scorches the grounds; water below 190°F leaves sweetness behind. No thermometer? Boil, then wait 30 seconds.

Ratio

A 1:16 ratio — one gram of coffee to sixteen grams of water — is the default that works across almost every method here. In practical terms: about 2 tablespoons of coffee per 6 oz cup. Adjust to taste, but change one variable at a time.

One thing worth knowing if you brew in Boston: MWRA tap water is soft and low in minerals. Soft water extracts less than the water most brewing recipes assume, which is why a cup that should taste sweet can land thin and sour. If that sounds like your coffee, grind one notch finer before you change anything else. A filter pitcher with a mineral cartridge fixes the rest.

Match the coffee to the method

Our two house coffees pull in different directions, and that difference is the point.

Cenicafé comes from Chinavita, Boyacá — the Cenicafé 1 variety, with notes of cocoa, honey, hazelnut and citrus. That citric edge is its signature, and it survives best in methods that favor clarity: pour-over, flash brew, AeroPress. Available in whole bean or ground, medium or dark roast.

San Bernardo is a single-farm coffee from Ibagué, Tolima, sun-dried and roasted at origin, scoring 87 on the SCA scale. Sweet and balanced with chocolate and red-fruit notes and a silky medium body. That body is what full-immersion and pressure methods amplify: French press and moka pot.

Bosa Coffee Drips are a category of their own — Castillo variety from Pitalito, Huila, grown at 5,784 ft, pre-ground and sealed inside a single-serve pour-over bag. Sugar cane, peach and red berries. No device required.


The six guides

1. Pour-Over — the cleanest expression of a single-origin coffee.

2. French Press — full body, no filter, no fuss.

3. Moka Pot — stovetop concentration, the Latin American way.

4. AeroPress — the most forgiving device you can own.

5. Automatic Drip Machine — how to get real coffee out of the machine you already have.

6. Flash Brew — iced coffee that keeps its aroma.


Where the coffee comes from

Every bag we sell is traceable to a single farm and hand-picked cherry by cherry, largely by the women who work those farms. The brewing is the last five minutes of a very long process. Doing it well is the least we owe them.

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