Bean On Bar September

Learn

What the label is
actually telling you.

Variety, process, altitude, roast date — each one is something that already happened to the bean, printed in shorthand. Learn to read them and the bean will tell you how it wants to be brewed.

Three bags from Bosgaurus Coffee Roasters, each printing country, origin, altitude, variety, process, roast date and weight; two are from the same Vietnamese farm and differ only in process
Two of these are the same farm — Hung Farm, Xuan Tho, 1350 m, Catimor — and differ only in how the cherry was handled. One is BSWB, the other deep-washed. The roaster’s own notes then diverge completely: pineapple, winey, cocoa nibs against grape, lime, bright acidity. Same ground, same genetics, same altitude. The fermentation tank did the rest.

Roast date

Not a best-before. Most filter coffee opens between day nine and day fourteen and closes slowly after. A bag with no roast date is a bag telling you something.

Process

Washed, natural, honey, anaerobic — the single biggest lever on what you will taste, decided before the bean ever reached a roaster.

Variety

Gesha, SL28, Catimor, Bourbon. Genetics set the ceiling; everything after that decides how close you get to it.

Altitude

Slower maturation, denser bean, more acidity to work with. It is also the number most often stated vaguely.

All three at once

Process, variety, altitude —
on one tube.

None of these are decoration. Each one narrows what the coffee can taste like before anybody chooses a grind.

Sample tubes of coffee labelled Colombia, Finca El Diviso, Aji Bourbon, anaerobic natural, 1750 to 1850 metres
Columbia, Finca El Diviso — the label’s own spelling. Aji Bourbon. Anaerobic natural. 1750–1850 m. Five facts, and already you know it will not want the same water as a washed Kenyan.

Grind and water

The two variables
most people guess at.

“Medium-fine” is a shrug. The app translates ranges into clicks on the grinder you actually own, and treats water and filter paper as modelled variables rather than constants.

The Beans tab: twelve beans across five origins, eight on the shelf, bags marked day 25 and day 18 likely at peak and day 26 likely past peak, with a finished shelf below
Rest is a variable too. Eight bags on the shelf, each carrying the day it is on and whether that is likely at peak or past it. The finished ones stay below with what you rated them, because a bag you have drunk is still evidence.
A card beside an espresso reading: Costa Rica, Aquiares Estate, plum, red grape, brown sugar
Aquiares Estate, Costa Rica. Plum, red grape, brown sugar. The notes arrive with the cup because someone has already decided what it should taste of — the only question left is whether your brewing lets it.
The Grind step: a recipe range of 650 to 800 microns shown as approximately number 6.2 to 7.8 on a dial reading 7.0, with a note that this is a community-derived starting point
650–800 µm becomes 6.2–7.8 on your grinder — and says so: a community-derived starting point, not a manufacturer figure. Trust your own dial-in over it.
The brew timer: bloom with 45 g, pour at 5 to 10 ml per second, light roasts 93 to 96 C, and an explanation that the second bloom drives out trapped CO2
Not bloom for thirty seconds, but why: the second bloom drives out trapped CO2 so the big pour cannot channel around rising bubbles.
The Cup step: a flavour wheel with Fruity selected, showing twenty-one notes beneath it
The wheel is vocabulary, not a quiz. Twenty-one notes sit under Fruity alone — enough to say what you actually tasted.

Reading it back

The card is a claim.
The cup is the check.

Citrus, apple, honey — printed before anyone poured anything. Learning to read a label is not a substitute for tasting; it is what makes tasting checkable. You already know what the roaster found. What is left is finding out whether your water agreed.

A cup of filter coffee on a counter with its lot card and bag behind, both reading La Chorrera, Colombia, Pink Bourbon, washed, citrus, apple, honey
La Chorrera, Colombia. Pink Bourbon, washed. The bag, the card and the cup in one frame — which is the only place the claim and the evidence ever meet.