System Operational

The Brewer's
Operating System.

Build, connect, and scale your brewing intuition.
The fastest and most intelligent brew log for your coffee experiments.

LOG_BREW_042
Ethiopian Yirgacheffe
Dose
20.0g
Temp
93°C
Grind
14 clicks
Time
3:00
Flavor Profile
Acidity
Sweetness
Body
Analysis Complete
> Pattern Detected:
Higher temp (+2°C) correlated with increased sweetness rating.

Why did yesterday's brew
taste so damn good?

We'll tell you.

Track your experiments. We find the patterns. You brew better coffee.

01_PATTERN_DETECTION

We see what you can't

Chasing sweetness? Want more body?
We spot the pattern in 3-4 brews and tell you exactly what to change.

SAVED
02_EXPERIMENTAL_JOURNALS

Experiment like a scientist

Testing new grinders? Comparing roasters?
Group brews into journals and actually see what makes a difference.

V60. Aeropress. Espresso.
Chemex. Kalita. French Press.
We track it all.

Interactive Demos

See it in action.

Play with these interactive demos. No signup, no commitment—just you, some virtual coffee, and a taste of what Postbrew can do.

Demo Mode
01_BREW_LOGS

Dial in like a pro

Change one variable at a time, mark it better or worse, and watch Postbrew learn what you're chasing.

Coffee
Ethiopia Guji - Natural
Onyx Coffee Lab
Last Brew
Current Baseline
Grind
18 clicks
Temp
93°C
Bloom
0:45
Total Time
2:30
Ratio
1:16
Bright acidity, clean finish, floral notes
Step 1: Choose one variable to adjust

Pick which parameter you want to change for this brew

Simulated data - Sign up to use this feature for real

Demo Mode
02_AI_SUGGESTIONS

We spot what you're chasing

After a few brews, our AI notices patterns in your feedback and tells you exactly what to try next.

Your Recent Brews - Ethiopia Guji
Brew #4
Thin body, weak
91°C
18 clicks
Brew #3
Balanced, good sweetness
93°C
18 clicks
Brew #2
Fuller body, more sweetness
94°C
18 clicks
Brew #1
Very sweet, syrupy
95°C
18 clicks

Simulated data - Sign up to use this feature for real

Demo Mode
03_JOURNALS

Your coffee lab notebook

Comparing roasters? Testing a new grinder? Group related coffees together and track what actually matters.

Your Journal

Dialing in Natural Ethiopians

2 Coffees

Exploring natural process Ethiopians to understand their unique characteristics

Ethiopia Guji - Natural
Onyx Coffee Lab
NaturalFruity

Initial test at 93°C - good balance but could be sweeter

2 days ago

Increased temp to 95°C - much better sweetness, fuller body

1 day ago
Ethiopia Yirgacheffe - Natural
Heart Roasters
NaturalFloral

Similar profile to Guji but more floral, less fruit

1 day ago

Simulated data - Sign up to use this feature for real

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Postbrew - The Brewer's Operating System