Independent · Data-obsessed · Est. 2026

Every cupdeserves obsession.

Brew guides with every number sourced, research-driven gear guides, and the internet's most rigorous caffeine data, reconciled when the sources can't agree.

Espresso ·Pour-over ·Cold brew ·French press ·AeroPress ·Moka pot ·Caffeine science ·Origin stories ·Grinder lab ·Water chemistry ·

The Craft · from farm gate to your kitchen

Three chapters.
One perfect cup.

Ripe coffee cherries on the branchHuila, Colombia
01

The Cherry

It starts as fruit, not a bean.

Coffee is the seed of a cherry grown at altitude. Variety, soil, and processing decide more of your cup's flavour than any machine ever will, so that's where our origin stories begin.

Explore the origin atlas
Beans tumbling in a drum roasterFirst crack · 196°C
02

The Roast

Chemistry, caramelised.

First crack, development time, Maillard reactions: roasting is applied chemistry with a timer. Our guides decode roast levels so a bag label actually tells you something.

Decode roast levels
Black coffee in a ceramic cupYour kitchen · tomorrow morning
03

The Cup

Where you come in.

Grind size, water temperature, ratio, time. Four variables stand between you and a café-grade cup at home, and every brew guide on this site is built around them.

Pick your method

Coffee Data Lab · flagship tool

Know your dose.

The Caffeine Calculator

Every drink in our database is sourced from lab analyses and manufacturer disclosures. When the sources disagree, we show you the range, not a guess. Compare your daily intake against the 400 mg guideline used by food-safety authorities.

435
mg caffeine / day
That's 109% of the guideline: consider capping at 2 cups

Gear guides · research-driven buying advice

Buy once, buy right.
Matched to how you brew.

Every guide starts from the recipe, not the product: we read the spec sheets against the ratios, grinds and temperatures in our brew guides, and tell you which gear actually fits the way you make coffee.

Transparency: some links on this site are affiliate links: if you buy through them we may earn a commission at no cost to you. As an Amazon Associate we earn from qualifying purchases. Our guidance comes from published specifications and public data, not paid placements.

Coffee Data Lab · the authority engine

When the internet disagrees,
we run the numbers.

6

brew methods covered, ratio to water temperature, every number sourced

47

journal articles published, every claim cited to its source

6

drinks in the caffeine calculator, each with a sourced range

0%

scores influenced by brands or affiliates. Zero. Ever.

Exhibit A: how much caffeine is in cold brew? Depends who you ask.

Starbucks Grande, in-store
43 mg
Starbucks bottled RTD
55 mg
High Brew Triple Shot
69 mg
Lab concentrate, max
123 mg

Same drink name, normalised to 100 ml, and the sourced answers still span 3x. Our data pages publish every source, the method behind it, and a reconciled range, so you can check every number yourself.

Coffee cup

The Sunday Pour

One brew tip. One honest pick.
Every Sunday morning.

No spam, no "10 best" filler, just the most useful thing we learned about coffee this week, in a two-minute read with your first coffee.

Free forever. Unsubscribe with one click.