Coffee Brew Recipe Builder + Pour Timer

How the Brew Recipe Builder Turns Guesswork Into an Exact Coffee Recipe

Great coffee is a set of variables you can control, not a lucky accident. This brew recipe builder does the coffee-to-water ratio math for you, then hands back a full timed pour-over recipe: exact dose in grams, water weight, brew temperature, a grind-size descriptor, and a bloom-and-pour schedule you can follow with the built-in timer.

Most coffee calculators stop at “20 g coffee, 320 g water.” That number is useless at 6 a.m. when you also need to know how hot the water should be, how coarse to grind, when to bloom, and how many pours to make. RoastWorthy's recipe builder combines the calculator, the pour timeline, and a shareable recipe card in one place, so you spend your morning brewing instead of converting ratios in your head.

What the coffee-to-water ratio actually controls

The ratio is the single biggest lever on strength. A wider ratio like 1:17 pulls a lighter, tea-like cup; a tighter 1:15 gives you a bolder, heavier body. The builder maps your Mild / Standard / Strong choice to a real brew ratio, then scales the dose to your exact cup size and number of servings. Change the mug from 240 ml to a 500 ml carafe and every gram updates instantly — no recalculating, no spreadsheets. If you want the reasoning behind each number, our coffee brewing ratios guide breaks down the sweet spot for every method.

What the coffee-to-water ratio actually controls

Water temperature and grind size are not fixed. Light roasts are dense and need hotter water (around 96 °C / 205 °F) to extract fully, while dark roasts dissolve fast and taste cleaner a few degrees cooler. The builder adjusts the target temperature and the grind descriptor based on the roast level you select, so a light-roast pour over and a dark-roast French press get genuinely different recipes rather than one generic template. Dialing the grinder is where most home brewers lose the plot, which is exactly why we also built a dedicated grind size finder mapped to real grinder click settings.

How to use the pour schedule and timer

Once your recipe is set, the timer builds a step-by-step timeline tuned to your method:

The timer counts up as you brew, tells you the exact weight to pour to at each stage, and advances automatically so your hands stay on the kettle and scale. It works for pour over, Chemex, Kalita Wave, AeroPress, French press and Moka pot — each with its own timing and grind logic.

Save it, copy it, or share the card

Found a recipe that sings? Copy it as plain text, save it to your device so it loads next time, or download a clean PNG recipe card to pin above the grinder or share with a friend. Every card is built from the same exact numbers we use across the site — no vague “medium grind, hot water” hand-waving.

Dial in from here

A recipe is a starting point, not a rule. If the cup tastes sour or thin, it is usually under-extracted — grind finer or brew a touch hotter. If it tastes bitter or hollow, it is over-extracted — grind coarser or shorten the brew. Our troubleshooting guides walk through one fix at a time, and once you know your method, the full brewing method library covers the technique in depth. Build the recipe here, brew it with the timer, taste it, and adjust one variable at a time until it is exactly the cup you want to wake up for.