User Guide
Get the most from every litre.
A practical walkthrough of every module, written for the dairy floor — with worked examples you can check against your own plant numbers.
For DairyYield Pro v2.1.0 · Works fully offline
1. The Yield Calculator (Calc tab)
- Enter Milk Quantity (litres), Milk Fat %, Milk SNF % and Specific Gravity (default 1.030). Quick presets for cow and buffalo milk are one tap away.
- The app instantly shows total milk weight, fat & SNF available, total solids and water content.
- Tap a product — Cream, Ghee, Khava, SMP, WMP, Paneer, Butter, Curd, lassi, Chakka — to see its expected yield, fat used and processing loss, with a step-by-step formula you can audit.
- Use Copy Summary or Print Report to share the result, and Save to History to keep it (up to 200 records).
Worked example: 1000 L milk at 4.0% Fat, 8.5% SNF, density 1.030 → 1030 kg milk containing 41.2 kg fat and 87.55 kg SNF → about 39.89 kg ghee or 219.90 kg paneer at default settings.
2. Make the numbers match your plant (Product Settings)
Every product has tunable assumptions — fat/SNF content of the product, recovery %, processing loss % and more. Open More → Product Settings, run one real batch in your plant, then adjust the percentages until the app matches your floor results. From then on, estimates are calibrated to your dairy. You can also add fully custom products.
3. Milk Standardization (Adjust tab)
Seven methods to bring milk to an exact target composition:
- Cream removal and skim-milk addition — adjust fat up or down.
- Batch blending — mix two lots to hit a combined target.
- Target quantity — how much standardized milk a plan produces.
- Multi-batch and compare-all — evaluate several lots at once.
- Reverse what-if — start from the result you want and work backwards.
Save your regular buyers' specs as company profiles so a whole standardization plan becomes two taps.
4. Farmer Batches (Batches tab)
- Tap + Add Farmer and enter each supplier's name (Marathi/Hindi names fully supported), litres, Fat % and SNF %. Rows are big and touch-friendly for fast morning entry.
- The summary band always shows total litres, weighted Fat, weighted SNF, total fat/SNF kg and milk grade — quantity-weighted, the correct way.
- Load into Calculator sends the whole collection into the Calc tab for yield planning.
5. CSV import & export (Excel-ready)
Export CSV (farmer batches, history, standardization history) produces clean files that open correctly in Excel, Google Sheets and LibreOffice:
- UTF-8 with BOM — Marathi names like
देशमुख, सुनील display perfectly in Excel.
- Proper quoting/escaping (RFC-4180) — commas and quotes inside names are safe.
- Formula-injection protection on names beginning with
=, +, - or @.
- Readable filenames like
dairy-farmer-batches-2026-11-08.csv.
Files you export can be re-imported with Import CSV — handy for moving data between phones or keeping a register on a computer.
6. Daily Collection, All Products, Economics & Scenarios
- Daily tab: morning + evening shifts with weighted averages for the day.
- All Products Table: every product's yield from the same milk, side by side — spot the best use of today's fat instantly.
- Product Economics: enter milk cost, processing cost and selling prices to see margin per kg and per batch.
- Compare Scenarios: save "what-if" plans (different milk, different product mix) and compare them before committing.
7. Reverse Calculator (More → Reverse Calculator)
Start from an order: choose the product, tap a quantity chip (50 / 100 / 250 / 500 / 1000 kg) or type your own, enter the Fat/SNF of milk you can buy — the app shows the Estimated Milk Procurement Target: litres to purchase, milk weight, and the fat and SNF that milk will carry.
8. Data & Backup Centre (More → Data & Backup)
- Export Backup — one small file containing everything (settings, batches, history, profiles). Share it to WhatsApp/email/Files for safekeeping.
- Import Backup — restores everything on the same or a new phone. Invalid files are rejected safely.
- Auto-backups run silently in the background, and if stored data is ever corrupted, it is quarantined automatically so the app still opens.
- A storage meter shows how much space your data uses, and Factory Reset wipes everything if you hand the phone over.
Golden rule: export a backup after every important collection day. It takes five seconds and makes your records phone-loss-proof.
9. Tips from the dairy floor
- Measure Fat/SNF after thorough mixing — a stratified can skew every calculation downstream.
- Calibrate Product Settings once per season; milk composition drifts, and your settings should drift with it.
- Use Farmer Batches daily even for rough numbers — the weighted averages quickly reveal which routes give you the best fat.
- Before a big order, run it through the Reverse Calculator and Product Economics together: litres first, margin second.
Still stuck? The app's built-in Dairy Guide (More → Dairy Guide) explains the dairy science behind every formula, right inside the app — offline, of course.