Case study · Food & Beverages
Dairy Ingredient Mass-Balance & Butterfat Giveaway Elimination
A global dairy and cheese processor operating 6 fluid milk and cheese manufacturing plants processing 4.2 million liters of raw milk daily.
Engagement record
- Client
- Dairy ingredients producer
- Industry
- Food & Beverages
- System
- Ingredient Mass-Balance & Recipe Batching AI
- Timeline
- 5 Weeks
About this write-up
This case study describes the engagement as recorded. The client is not named; figures and outcomes are as reported by the client and have not been independently audited.
The challenge
The producer over-dosed expensive butterfat and milk solids by 0.12% across its standardized milk and cheese vats to prevent falling below mandatory FDA minimum label claims. Across 4.2 million daily liters, this raw ingredient giveaway cost $1.6M annually in unrecovered dairy fats.
Objectives
- Connect laboratory LIMS raw milk chromatography analyzers with standardization blending PLC valves.
- Dynamically calibrate cream dosing setpoints based on incoming raw tanker composition assays.
- Guarantee 100% FDA regulatory compliance while eliminating ingredient over-dosing.
Discovery
Plant audit revealed that batch standardization operators deliberately over-fortified cream because static standardization tables did not update when incoming tanker fat percentages fluctuated throughout the day.
What was built
- FOSS MilkoScan LIMS Ingestion Connectors. Streams incoming raw tanker fat, protein, and solids-non-fat assays in real time.
- Non-Linear Fluid Milk Standardization Solvers. Mass-balance algorithms calculate exact cream and skim milk valve trim setpoints.
- Rockwell FactoryTalk & Wonderware Batch Data Bridges. Sends verified dosing offsets to automated standardization blending valves.
- Control Room Dynamic Dosing Advisory Console. Displays real-time margin cost per ingredient addition with operator verification checkpoints.
Outcomes as reported
Reported summary: -82% Butterfat Giveaway & $1.6M Saved.
| Figure | What it refers to |
|---|---|
| -82% Fat Giveaway | Excess butterfat over-dosing trimmed to within 0.02% of target nutritional label specifications |
| $1.6M Annual Savings | In unrecovered cream and dairy solids saved across fluid milk and cheese vats |
| 99.8% Claim Precision | Full legal compliance with FDA nutritional label claims across all SKUs |
| 0 Re-Batching Runs | Eliminated batch standardization re-blending and holding tank bottlenecks |
Figures as reported in the engagement record; not independently audited.
Lessons
- Real-time tanker assay ingestion allows standardization valves to adjust dynamically before mixing begins.
- Operator buy-in was achieved by displaying real-time dollar savings per batch directly on the control booth screen.
Next steps
Expanding the mass-balance optimization model to cheddar cheese curd moisture and salt dosing.
Implementation questions
Statistical process control boundaries are hardcoded as non-violable lower limits, allowing fat trim only within proven safe tolerance bands.
Yes. Operators retain full manual override control, with all parameter changes logged automatically for audit review.
LIMS connector setup, historical batch modeling, and operator onboarding were completed in 5 weeks.
