Continuous Solids Measurement for Juice and Dairy Concentration Processes
Precision Concentration for Quality Food Products
Juice and dairy concentration processes demand precise total solids control to maintain product quality, optimize energy efficiency, and ensure consistent final product specifications. From fruit juice evaporation through whey and lactose concentration, these processes operate under strict hygienic requirements while managing challenging measurement conditions—suspended pulp, protein fouling, wide concentration ranges, and frequent CIP cycles.
Evaporator performance directly impacts product quality and operating costs. Over-concentration wastes energy and can degrade product characteristics. Under-concentration reduces yield and creates inconsistent downstream processing. Accurate, continuous measurement enables operators to hit target concentrations precisely while minimizing energy consumption.
Inmec’s 3-A certified sensors deliver stable total solids measurement throughout juice and dairy concentration processes—measuring dissolved sugars and suspended pulp in juice applications, monitoring whey and lactose concentration in dairy operations—while meeting sanitary requirements and withstanding unlimited CIP/SIP cycles without performance degradation.
The Challenge: Why Juice and Dairy Concentration Demands Robust Measurement
Wide Concentration Ranges
Measurement must span from dilute feed (8-15°Brix fresh juice, 5-10% solids in whey) through concentrated discharge (60-75°Brix concentrate, 40-60% solids in concentrated whey)—a range that challenges many conventional measurement technologies.
Suspended Solids and Particles
Fruit juice contains pulp, fibers, and natural particles. Dairy products contain protein, fat, and casein particles. Many measurement technologies cannot function when suspended material is present.
Buildup Tolerance
Natural product components—pulp in juice, protein and fat in dairy—create coating on sensor surfaces during production runs. This fouling causes signal drift and requires frequent cleaning with conventional sensors.
Hygienic Requirements
Food and beverage applications demand 3-A certification, CIP/SIP compatibility, and sanitary design. Equipment must withstand aggressive cleaning chemicals and thermal shock from steam sterilization.
Energy Optimization
Evaporation consumes significant energy. Precise concentration control minimizes energy waste while maintaining product quality—accurate measurement is essential for optimization.
How Inmec Sensors Perform in Juice and Dairy Evaporation
| Process Condition | Typical Environment | Inmec Sensor Performance |
|---|---|---|
| Concentration range | 5-75% depending on product | Stable measurement across wide ranges |
| Suspended solids | Pulp, protein, fat particles | Measures total solids: dissolved + suspended |
| Operating temperature | 60-90°C during processing | Automated temperature compensation |
| CIP/SIP cycles | Multiple cycles per day/week | Unlimited cycles without degradation |
| Product coating | Pulp, protein, fat buildup | Measurement unaffected by sensor surface coating |
| Hygienic standards | 3-A certification required | 3-A certified models available |
| Batch duration | Hours to continuous operation | No recalibration during production |
3-A Certified Hygienic Design
Models available with 3-A sanitary certification and tri-clamp connections—meeting food industry requirements for hygienic processing equipment.
Measures Through Pulp and Protein
Total solids measurement captures both dissolved and suspended components—fruit pulp in juice, protein and fat in dairy.
Unlimited CIP Capability
Withstands aggressive cleaning chemicals and high-temperature steaming without performance degradation—maintaining calibration accuracy through unlimited cleaning cycles.
Applications in Juice and Dairy Concentration
Fruit Juice Concentration
Quality Control from Fresh Juice to Final Concentrate
Continuous total solids measurement through juice evaporation supports product quality control, energy efficiency, and consistent concentrate for storage and downstream processing.
Typical applications:
- Single-strength to concentrate evaporation
- Multi-effect evaporator monitoring
- Falling film evaporator control
- Concentrate storage verification
- Feed-to-discharge monitoring
Measurement challenges: Wide range from fresh juice (8-15°Brix) to final concentrate (60-75°Brix). Suspended pulp, fibers, and fruit particles. Natural product components create coating. Temperature variations across evaporator stages. Energy costs demand precise control.
Inmec solution: Measures total solids including dissolved sugars and suspended fruit pulp—providing accurate data throughout the concentration range. Coating resistance maintains stability as natural components deposit during runs. 3-A certified models meet hygienic requirements. CIP compatible for frequent cleaning cycles.
Whey and Lactose Total Solids
Dairy Protein and Lactose Processing
Continuous measurement through whey evaporators supports consistent process efficiency and uniform target concentration for whey protein concentrate (WPC) and whey permeate production.
Typical applications:
- Whey protein concentrate (WPC) production
- Whey permeate concentration
- Multi-effect evaporator control
- Lactose concentration
- Protein standardization
Measurement challenges: Protein creates heavy fouling on sensor surfaces. Wide solids range from dilute whey (5-10%) to concentrated product (40-60%). Multiple CIP cycles daily. Sanitary requirements strict. Temperature variations during processing.
Inmec solution: 3-A certified sensors meet dairy sanitary standards. Coating resistance maintains accuracy despite protein fouling. Unlimited CIP/SIP capability without calibration drift. Temperature compensation across processing conditions.
Featured Sensor for Juice and Dairy Concentration
Why Digital Microwave Measurement Works Better in Juice and Dairy Applications
Total Solids Capability:
The measurement principle responds to both dissolved and suspended components. Whether measuring through fruit pulp or dairy proteins, the sensor continues delivering accurate total solids data where surface-dependent technologies cannot function.
Coating Resistance:
Pulp deposits in juice processing and protein/fat fouling in dairy operations do not affect measurement accuracy because the measurement volume extends into the product itself. This enables continuous operation between CIP cycles without signal drift.
The practical advantage:
Juice and dairy concentration demand measurement technology that combines hygienic design with functional performance—measuring through suspended material, maintaining accuracy despite fouling, and surviving aggressive cleaning regimes. Inmec sensors deliver all three.
”We installed sensors in our juice evaporator. The continuous Brix data at three measurement points has run throughout the entire production season with stable readings—no cleaning required despite pulp content.”
— Process Engineer, Juice Concentrate Production (Spain)
Hygienic Measurement for Your Juice and Dairy Concentration Process
From juice processing to dairy production—measurement technology that handles suspended solids, meets 3-A requirements, and withstands unlimited CIP cycles.
Food & Beverage Processing
Learn about hygienic measurement solutions for juice, beverage, and dairy evaporation.