The timed round. Spin, type the number, weigh both brews, read the two pour weights. This tab does not measure anything and does not build any data: it turns weights into pours. The measuring happens on PRACTICE.

Wheel target
Yield A
TDS A
Yield B
TDS B
Pour Ag
Pour Bg
Check

Logging here records the blend you presented: target, both yields, both pours. It does not add an extraction reading, because Round One has no refractometer. The grind ladder is built on PRACTICE.

Practice or competition
Grinder ID (required)

Start here in the morning. This tab is where measuring happens: brew it, weigh it, read the TDS, and the app works out the extraction. Everything else on the day reads the numbers you make here. Work down this screen top to bottom.

Measuring
Grind
Grinder
Dose g
Water IN g
Brew OUT g
Drain time

Water IN is what you poured onto the bed. Brew OUT is what you weighed in the vessel afterwards. Brew OUT is always the smaller number: the wet bed keeps the difference.

TDS reads (up to 5, median is used)
Median TDS
Cup EY
Total EY
Retention
Lock this in, and drop the refractometer

What this brew means for the round
Dial the grind
Match this EY
You measured
Gap
Go

This brew so far
Correction

Home EY
Measured EY
New dose g
New water g
Practice or competition
Coffee
Dose
Full recipe water (before the cut)
Grinder (home)
Grind size (home)
EK43 setting today
Bloom
What it made at home, pouring all the water
Extraction that gave
Step 1 · How much water to pour
g

Pour this much water, then stop. The rest of the recipe water is never poured at all. Nothing is thrown away and nothing is swapped: you simply end the brew early. The last part of a brew is thin and drying, so leaving it out makes the cup taste better and gets you off the clock sooner.

70 % is a starting guess taken from a different coffee. Move it by taste in the practice window.

Rough yield to expect

A planning number only, worked out from how much water the bed holds back. Weigh the real thing in Step 4.

Step 2 · How to pour it

Step 3 · Strength to serve at

The strength of the cup the judges taste, in % TDS. Every number in Step 5 is worked out to land exactly here.

Step 4 · Weigh what you actually brewed
Brew OUT g
TDS %
Extraction yield

Weigh what came out of the brewer, then read it on the refractometer. Both are allowed in Round Two. Until you fill these in, Step 5 is blank.

This is before any bypass water. It is the concentrate straight out of the brewer. The bypass gets added in Step 5, and Step 5 tells you how much.

Step 5 · Build the cup
Brew g
Hot water g
Cup total, after the bypass
Lands at

Brew in first, then the water, then stir hard before it leaves your hands.

Enough to go round?
Concentrate
Makes, at serve strength
Floor
Judge cups + sample

Scale the dose (practice only)
Dose
Full water at the same ratio
Water to pour at this cut
Practice or competition
Grinder ID (required)

Black and white, no backgrounds, one card per box, nothing split across a page. Prints all four pages and both Round Two coffees, whichever one is showing here. The numbers are whatever the app holds right now, so print again after the practice window.

Entries0

Also the blue ASK button, bottom right of every screen. It needs a PIN once per device; the PIN lives on the server, not in this file, because anything in this file is public.

Brewer\u2019s Choice target

3 of the 38 wedges let you name the target. This is the number the BC chip on R1 loads, so decide it now rather than on the stage.

Round Two recipes
Grinder IDs (comma separated)
Wheel values (comma separated)
Derived — eyeball this

Ask about today
Helper PIN

Only needed for the ? button. Everything else in the app works without it, and always will.

It already knows the whole plan, both recipes, the rules and what is on your screen right now. It cannot change anything, and if it is down nothing else in the app stops working.