For home espresso
Stop pouring the first half of the bag down the drain.
Log four numbers and a rating. Don't Waste Coffee tells you exactly what to change on the next shot, in your grinder's own units.
One-time purchase. No subscription, no account, no ads.
Why it exists
The first days of every bag cost money.
3
You change three things at once
Grind, dose and yield all move, the shot tastes different, and you can't tell which change did it.
Thu
You forget what you tried
Yesterday's setting is a guess by Thursday. You overcorrect, then correct back.
⅓
The bag is half gone
By the time it tastes right, a third of a 250 g bag can be gone.
How it works
Log the shot. Get one clear next move.
- 01
Log four numbers
Grind, dose, yield and time, plus a rating. The next log is pre-filled, so most entries are two numbers.
- 02
Get the exact move
Snapped to your grinder's real steps. Puck problems get fixed before the grind moves.
- 03
It learns as you go
How many seconds one step is on your grinder, how fast your beans age, where your best shots land.
18 g in → 36 g out · 28.5 s
Balanced · High confidence
Community dial-in
Scan the bag. Start where people on your grinder landed.
Roasters print a QR code on the bag or link from the product page. Scan it to see where people on your grinder model settled for that exact roast, how much they agree, and the roaster's own recipe.
One tap to start
Adds the coffee and sets your first shot.
Sharing is optional
See every field before it's sent; take it down any time.
The community opens with the app. Founding roasters are setting up their pages now, and every recipe shared from launch day on shows up here.
Home screen and wrist
The next shot, before you open the app.
Also
- Ask Siri for the next grind
- Shot timer on the lock screen
- Tap an NFC sticker on the jar to switch coffees
Also: ask Siri · Live Activity timer · NFC jar stickers
Everything else
Built around the bag, not just the shot.
Ask why
"Why was it sour?" Answers from your shot, grinder history and bean age.
Beans, start to finish
Roast date, freshness, grams and shots left, and a freezer mode.
Never run out
An order-by date from how fast you drink and the roaster's shipping time.
Maintenance
Backflush, descale, burrs and gaskets, by shots pulled and days passed.
Read it off the scale
Point the camera at your scale; weight and time fill in.
Know what it costs
Cost per shot, spend against a budget, and dial-in waste over time.
Your gear, already in
About 70 grinders with real dial ranges, plus scales and machines.
Come from another app
Import Beanconqueror or any spreadsheet. Export to CSV any time.
Your data
Everything stays on your phone.
- No account
- No cloud
- No analytics
- No ads
The only thing that ever leaves is a recipe you choose to share with a roaster's community page. Read the privacy page