Grind calibration · Coffee notebook
Choose your beans and grinder, then find a starting setting. Record the time, yield and taste of the brew. Let that result inform the next adjustment.
Available for iPhone · iPad · Mac · 12 languages
2.3.1 has been submitted for review; the public App Store version is 2.3.0 (checked 2026-10-19).
01 / A fresh bag of beans
The dose is unchanged and the target is still 36 grams. With a new coffee, the shot suddenly finishes in seconds. Turn finer and it may barely drip. A familiar recipe does not tell you which setting this coffee needs.
YanMore Grind grew out of the repeated adjustments a new bag of beans can require. It brings equipment, beans and actual brew records together so you can compare attempts. You can also skip recommendations and just record recipes and tasting notes.
02 / Watch the flow
Illustrative examples for about 18 g and a 1:2 ratio. 25–30 seconds is a common starting point, not a universal standard. Channeling and other factors also affect flow.
Fast flow
10 s / 40 gThe grind may be coarse. Check puck preparation before going finer.Reference zone
25–30 s / 36 gNear the recipe target, taste before deciding what to change.Restricted flow
30 s / 10 gThe grind may be fine. Check dose and equipment before going coarser.03 / One brew at a time
Recommendations, measured brews and reference recipes stay distinct. Importing a recipe does not turn it into your measured result.
Choose your coffee and grinder
04 / Bayesian calibration
The same number on two grinders does not mean the same thing. YanMore Grind uses a personalized Bayesian model, combining eligible measured brews with beans, equipment and recipe context to inform the next adjustment.
Guidance changes with valid records. Sparse or conflicting feedback may require more measured brews. There is no promised number of cups to calibrate; a suggested setting still needs to be assessed by tasting the result.
Variety, roast, rest time, dose, distribution, tamping, temperature, pressure and equipment condition also affect extraction. Validate recommendations in the next brew; they do not guarantee flavor or replace taste.
YanMore Grind / 2.3.1
Espresso today, a pour-over tomorrow, from the same bag. Note a citrus aroma separately from a dry finish. Version 2.3.1 expands the flavor wheel and adds repeat-purchase records, with clearer Free / Pro boundaries for calibration and the bean workbench.
2.3.1 has been submitted for review; the public App Store version is 2.3.0 (checked 2026-10-19).
The 2.3.1 flavor wheel has 8 aroma families, 108 specific aroma descriptors and 10 separate mouthfeel options. In a brew’s flavor notes, choose the wheel, then a family and a descriptor; search and list views are also available. Select across families and set each intensity separately: clear lemon, for example, with slight creaminess. These are personal tasting notes, not chemical measurements or an official flavor certification.
In 2.3.1, start a repeat purchase from a finished bean record. Basic details carry over; confirm the new bag’s roast and opening dates before saving. This creates a new bean record within the existing library allowance. The old bag stays finished and its brews are neither moved nor rewritten. Canceling creates nothing. Brewing the same bag again does not need a repeat-purchase record: select that bag and add another brew.
Open a bean’s journey to revisit its brews in time order. In 2.3.1, the ordinary timeline, old-brew details and manual recording remain Free within existing history limits. Grouping by method, workbench favorite filters, two-brew comparison and quick recipe reuse are Pro features. Reuse opens a new draft; measure this cup’s yield and time again. Canceling adds no brew. Expiry does not delete brews, favorites or recipes, but professional comparison and reuse require Pro again.
Version 2.3.0 added editable Ristretto, Normale, Lungo, Allongé and Turbo starting recipes. In 2.3.1, Free espresso prediction and feedback calibration use the standard 1:2 ratio, such as 18 g in and 36 g out. Other styles, templates and custom-ratio predictions require Pro. This limits prediction, not the ratio of an actual brew record, and does not rewrite old recipes. Pro still has method limits; it cannot automatically predict every pressure or flow profile.
05 / Also a coffee notebook
Keep profiles for your beans and equipment, with the recipes that belong to them.
Acidity, sweetness, bitterness, texture, flavor intensity—or simply “good with milk today.”
Espresso, pour-over and other methods. Access to all methods and advanced settings depends on Free / Pro entitlements.
Share a brew and keep local exports. Advanced sharing and full backup restoration are Pro features.
Finish one or several small bottles, or record milliliter uses from a larger container. Stock removed and milk added to a cup stay separate, with undo for the current operation. Inventory, costs and reminders are Free; Pro edits label nutrition and lactose information. Reminders do not assess food safety.
Saving a new brew can also add its composition estimate to the diary. Selecting an old recipe in the calculator does not count as drinking it. The Pro calculator gives rough caffeine and cafestol estimates with assumption ranges—not laboratory measurements or medical advice.
YanMore Grind / Mac
The native Mac app is now available. Brew history, bean profiles and the coffee diary have room to breathe. Look back at a cup, review its recipe and tasting notes, then decide where to begin today.
View the Mac app06 / A closer look
The gallery retains previously reviewed app captures from 2.2.1 and earlier, not new 2.3.1 screenshots. Each capture matches this page’s language. See the update notes for the new flavor wheel and workbench.
07 / Available now
YanMore Grind is available on the App Store with a multilingual interface. Start recording and calibrating with Free; Pro adds equipment options, methods and full history. Check the app for current prices and entitlements.
Privacy
Core records and recommendations run locally without an app account. Apple handles purchases and subscriptions. See the privacy policy for optional services and permissions; review records before sharing or exporting them.
Read the privacy policy