The Coffee Index
Learn coffee, properly.
A working buyer's map of the category — origins, roasts, processing, caffeine, and brew method. Independent, cited, updated as the field moves.
Fundamentals
Coffee Science
More in BuzzCoffee antioxidants and polyphenols
What laboratory assays, human studies, and population evidence can—and cannot—tell us.
The coffee caffeine guide
How much caffeine is in a shot, a pour-over, a French press, or a cold brew — and what actually drives the number.
High-caffeine coffee
Species, roast, dose, and brew method — the real hierarchy behind caffeine per cup.
Mold-free coffee
What the claim actually covers, how testing works, and the lot-sampling problem behind every 'toxin-free' label.
Coffee Buying
See brew guidesBest coffee — a practical framework
There is no universal 'best.' Here's the fit-based framework we use to match a coffee to a drinker.
Organic coffee
What USDA Organic actually certifies, how handler certification works, and where the label breaks in coffee.
Best organic coffee — a buying framework
Choose by certification, taste, brew method, format, and live value—not unsupported rankings.
Best espresso — how to choose
Match a bag to your machine, drink style, roast preference, and grind — no rankings or scores.
Best organic espresso
How to match a certified coffee to your espresso machine, grinder, and preferred drink.
CoffeeInc coffee reviews and buying guide
Compare selected coffees, attributed external review evidence, brew fit, format, and sourcing without a fabricated leaderboard.
Coffee roast levels, explained
Which roast level fits which method, and how to read a roast date on the bag.
External coverage
Big News Network · August 16, 2026
A consumer guide to comparing coffee without the marketing hype
Big News Network published a general consumer guide on freshness, origin labels, roast level, grinder consistency, water, brewing methods, equipment claims, and controlled adjustments, referencing "CoffeeInc.com's coffee guides." It is not a CoffeeInc product test, award, customer review, or independent endorsement.