CoffeeNutz® Guide
The roast happens in the Listener; the record lives in the cloud. Start one and it appears here in seconds, live first, then as a row in your history.
0:00ready
next stagedrop target
S-Curve Jumper Game ↗
Charge temp per batch size for HSR15. The Temp wheel opens here when you Start.
-
FC time
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Drop at
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Agtron
next stagedrop target
Cooling
0:00
Cool to 25°C.
Stage ⓘ
Temp
Start records CHG. Then Record each stage in turn; + temp logs a reading between stages.
Recipe = machine string carrying FC time, drop stage (A0-C2), dev, Agtron. Stages: A0 first crack, A1 intense, B0 increasing, B1 peak, C0 ending, C1 end, C2 midway.
DateBatchCoffeeTarget Agtron
No roasts logged yet.
Each finished roast teaches this bean's stage timings; the next roast starts from what it learned, then re-paces live as you crack.
Stage offsets - seconds after first crack at the base FC time. These drive the whole guide.
79.00cupping
score ⓘ
0:00
Optional. It never blocks your cupping.
Uniformity & defects
Non-uniform cups
Defective cups
Defect type
Each non-uniform cup costs 2 points, each defective cup 4.
Roast level (Agtron)
12525
Resmi CVA Formu · Official CVA print
Prints your marks onto the official SCA form. Needs internet.
Saved cuppings
Watch link
Cuppings rated on the watch land here by themselves.
Cupping Session
Score one attribute across the whole table, then move to the next - the way a cupper actually works the table.
Grade ⓘ
Green color
Category 1 defects
Zero allowed for specialty. Tap the photo that matches your bean.
Category 2 defects
Up to 5 full-defect equivalents allowed for specialty.
Extrinsic (information value)
Origin
Process
Certifications
Resmi CVA Formu · Official CVA print
Prints your marks onto the official SCA form. Needs internet.
Reference photos: SCA Washed Arabica Green Coffee Defect Guide (Ed. 3). Visual set is washed-arabica specific.
Saved gradings
No cuppings or gradings saved yet. Build a coffee's record in the Cup and Grade tabs, then it appears here.
v2026-07-27h
Classroom (admin)▾
Learners scan the exam's QR; the day's class code goes on the whiteboard.
Listener engine rules (admin)▾
The Crack Listener's projection and detection rules. Saved here, applied by the Listener on its next load (same device/browser). Blank changes nothing; Reset returns factory values.
Your membership▾
Change password▾
Keep your account yours. Pick something only you know.
Member access
Assign a plan to a learner by email. Works even before they sign up. No plan = Lite (use and see, cannot keep).
Provisioned members
Translations (EN → TR)
Edit the Turkish shown when the app is in TR. Saved for everyone; English stays the source. Full reference: tr-strings.md
Agtron Challenge · Gönderiler · Submissions
Community crack submissions. Listen before you approve.
Your recipes, roast history, cuppings and gradings are private to this account. Nobody else can see them.