Brew Timer
Choose a brewer, filter, and recipe, then follow every pour from bloom to drawdown.
COFFEE TOOLS · 11 BUILT IN
Keep the coffee math you use at the brew bar in one toolkit.
Eleven coffee tools, built into OLLA on iPhone and iPad. What you calculate goes back into your coffee record.
Extraction Yield
Turn dose, beverage mass, and TDS into an extraction reading on the SCA brew chart.
Espresso Lab
Dial in dose, yield, time, flow, and pressure against four practical espresso presets.
Ratio Calculator
Solve for water, dose, or ratio, then scale a recipe to your target brew size.
Water Recipe
Blend bottled waters on a GH × alkalinity map and see where the result lands.
Cupping Score
Score a table with CVA 2024 or Classic 2004 forms and keep every sample comparable.
Grind Guide
Compare settings across 26 grinders using micron references for each brew method.
Roast Reader
Read eight roast levels with Agtron references, flavor direction, and resting guidance.
Flavor Wheel
Move through the SCA × WCR wheel from broad families to 85 specific flavor descriptors.
Recipe Library
Filter 105 recipes by difficulty, roast, dose, and ratio, then start a brew.
A/B Compare
Set two brews side by side: the variables that differ are highlighted, then compare flavor and extraction and note a conclusion.
EQUIPMENT LIBRARY
The equipment library, checked against official sources.
Brew Timer and Water Recipe read from the same equipment library.
- 48 drippers
- 72 paper filters
- 80 bottled waters
FROM NUMBER TO CUP
The calculation is only useful if it helps the next cup.
Parameters and tasting notes are kept together, not scattered.
DOSE→RATIO→BREW→TDS→EY→TASTE→SAVE
11 TOOLS · ONE APP
Open fewer tabs. Keep the coffee tools you actually use at hand.
On iPhone and iPad, with tools and records in one local-first workbench.