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The journal

Coffee reporting, brewing science, and cafe culture.

Guides on how coffee is grown, roasted, brewed, and argued about. Every piece is written to be useful in a kitchen, not just readable in a browser tab.

Browse the archiveStart with the coffee guide
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In the archive

21

Published guides, comparisons, and detailed pieces.

  1. 01World Barista Championship: Panama 2026
  2. 02Why Caffeine Affects People Differently
  3. 03Caffeine and Heart Health: The AHA View

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All guides
World Barista Championship: Panama 2026
Guides

World Barista Championship: Panama 2026

The World Barista Championship lands in Panama City on 22 to 25 October 2026, the first edition in Latin America. Schedules, format, favorites and what to see.

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Also worth reading

Why Caffeine Affects People DifferentlyGuides

Why Caffeine Affects People Differently

Caffeine's half life runs from three to seven hours, and genes, age, pregnancy and medication all move it. Why the same cup can feel completely different.

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Caffeine and Heart Health: The AHA ViewGuides

Caffeine and Heart Health: The AHA View

The AHA's 2026 statement finds moderate plain coffee sits comfortably with a healthy heart, with the real warning aimed at high dose energy drinks and cafestol.

Archive21 guides

More coffee reporting

Brewing explainers, comparisons, and coffee culture stories from the archive.

Does Coffee Make You Gain Weight?Guides

Does Coffee Make You Gain Weight?

A Finnish cohort of 2,264 people found heavier coffee drinkers carried less body fat and more muscle, with a distinct hormone profile. What it does not prove.

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My Coffee Awards 2026: Barcelona GuideGuides
Caffe Atlas JournalRead

My Coffee Awards 2026: Barcelona Guide

Barcelona's My Coffee Awards runs 6 to 8 November 2026 at Nau Bostik: a festival and awards hybrid with free coffee, a barista contest and 50,000 cups served.

Caffe Atlas JournalRead
Coffee Shop Simulators: Real or Fantasy?Guides

Coffee Shop Simulators: Real or Fantasy?

Coffee shop simulators let you run a café with no rent, no staff and no bad suppliers. What they get right about coffee culture, and what they leave out.

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Brewing Coffee Without GravityGuides

Brewing Coffee Without Gravity

Gravity does the work in every Earth bound brew. Remove it and water, vapor and aroma all behave differently, which is what made espresso in orbit so hard.

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Coffee in Orbit: How Crews Drink ItGuides

Coffee in Orbit: How Crews Drink It

A 95% aroma retention freeze dry, one ration pack a day, and an espresso machine built for microgravity: how coffee actually works on the ISS.

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How to Get Coffee Stains Out of FabricGuides

How to Get Coffee Stains Out of Fabric

Coffee stains are tannin, not dirt, and heat is what makes them permanent. A practical sequence for shirts, sofas, carpets, and stains you thought were lost.

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Coffee and Working Memory: What HelpsGuides

Coffee and Working Memory: What Helps

Caffeine sharpens attention more reliably than memory. Where it helps in study and office work, what dose is sensible, and what sleep still decides.

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Coffee and Type 2 Diabetes: What We KnowGuides

Coffee and Type 2 Diabetes: What We Know

Habitual coffee drinking tracks with lower type 2 diabetes risk in study after study. What that association does and does not prove about prevention.

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L-Theanine and Coffee: A Smoother FocusGuides

L-Theanine and Coffee: A Smoother Focus

L-theanine may take the rough edge off caffeine without erasing it. What the research actually shows, sensible dose ranges, and how to protect sleep.

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Does Coffee Raise Blood Pressure?Guides

Does Coffee Raise Blood Pressure?

Caffeine can lift blood pressure for a couple of hours, usually by 5 to 10 mmHg. Who actually feels it, and why a single reading can mislead you.

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Caffeine Before Lifting: What WorksGuides

Caffeine Before Lifting: What Works

Caffeine genuinely helps lifting, but the dose and the timing decide whether it helps you or wrecks your sleep. A practical guide for training days.

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Coffee and Magnesium: The Real EffectGuides

Coffee and Magnesium: The Real Effect

Coffee nudges magnesium the wrong way, but it is rarely the main cause. What diuresis and supplement timing really change, and how to stay balanced.

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Coffee Cupping: What Smoking Costs YouGuides

Coffee Cupping: What Smoking Costs You

Smoke dulls retronasal aroma, saliva and sweetness. Here is what it costs a cupper's accuracy, and the adjustments that keep your scores useful.

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Coffee and Sleep Apnea: Help or Harm?Guides

Coffee and Sleep Apnea: Help or Harm?

Caffeine can make an exhausting day survivable and the next night worse. How to place coffee when the problem is your airway, not your alarm clock.

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Coffee and Gaming: Caffeine and FocusGuides

Coffee and Gaming: Caffeine and Focus

Caffeine can sharpen a long session and ruin the next day. What it genuinely helps in gaming, what it only hides, and how to dose it before ranked play.

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Coffee and Medication: Timing and RisksGuides

Coffee and Medication: Timing and Risks

Coffee can change how some medicines are absorbed and cleared. Which drugs need spacing, when decaf helps, and the one question worth asking a pharmacist.

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Coffee and Health: What Research ShowsGuides

Coffee and Health: What Research Shows

For most adults, moderate coffee drinking keeps appearing in the same research: lower risks of type 2 diabetes, liver disease, Parkinson's and some cancers.

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Espresso, Ristretto, Lungo: What ChangesGuides

Espresso, Ristretto, Lungo: What Changes

Same beans, same machine, three different cups. How grind, water volume and brew time split espresso, ristretto and lungo apart, and which one suits your taste.

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