FT-IR Analyzers for Dairy Testing
Turn dairy testing into a competitive advantage with fast, high-accuracy FT-IR analysis. The LactoScope delivers results in seconds, enabling tighter process control, reduced giveaways and scrap, and consistent product quality. From raw milk intake to final product verification, achieve reliable, repeatable insights with Perten’s LactoScope FT-IR analyzers that improve efficiency and protect margins across your operation.
Why Choose the LactoScope for Dairy Analysis
High-accuracy results you can trust: The LactoScope product line delivers precise, repeatable measurements for fat, protein, lactose, and solids and more, enabling tighter standardization, reduced giveaway, and consistent product quality across batches.
Simple, intuitive operation: Designed for ease of use, LactoScope analyzers feature convenient touch screens, automated workflows, integrated systems, and user-friendly software that reduce operator variability and streamline daily testing.
Versatility across dairy applications: From raw milk intake to processed products like cream, whey, and yogurt, LactoScope solutions provide robust performance across a wide range of dairy matrices, without the added hassle of external preparation.
Reliable performance and uptime: Built for demanding laboratory and production environments, LactoScope systems deliver consistent operation with minimal maintenance, helping ensure continuous testing and efficient workflows.
LactoScope Milk Analyzers
.jpg)
LactoScope™ 500
Fast and highly accurate for wide range of samples, including highly viscous samples.
Medium and high throughput labs and production environments
Fat, Protein, Lactose, Solids, SNF, True Protein, Tot Protein, Casein, Urea, Density, Citric acid, FFA, pH, FPD, HMT (depending on product)
Raw Milk, Milk Products (Processed milk, UHT milk, skimmed milk, semi-skimmed milk), Milk with added sugar, Cream Products, Whey Products, Ice Cream Mix, Yoghurt, Plant based Milk
< 30 seconds
.jpg)
LactoScope™ 300
Efficient, reliable analysis with simple operation, ideal for routine dairy testing where ease of use and consistency are key.
Small to mid-sized labs, intake points, and operations requiring quick, dependable results with minimal complexity
Fat, protein, lactose, solids, SNF
Raw and finished milk, cream up to 48% fat, whey
< 45 seconds
FT-IR Technology for Dairy Analysis
FT-IR spectroscopy enables rapid compositional analysis of dairy products by measuring how molecules absorb infrared light at specific wavelengths. Each component in a sample produces a characteristic spectral pattern that can be used to determine composition quickly and accurately.
Featured Resources
LactoScope 500 FT-IR Dairy Analyzer
In dairy processing, even small variations in fat, protein, and solids can impact yield, consistency, and profitability.
Learn More
Milk Analysis Using the LactoScope 500
Efficient dairy production starts with control at intake. Variability in incoming milk composition can quickly impact standardization, yield, and final product quality, making fast, accurate measurement essential from the very first step.
Learn More
Why Homogenization Matters in Dairy Quality Control
In dairy processing, small measurement errors can quietly erode margins through product giveaway and inconsistent quality. This article explores why homogenization is essential for accurate FT-IR analysis and how it directly impacts fat, protein, and solids measurement.
Learn More
How Improved FT-IR Accuracy Drives Efficiency, Reduces Risk, and Increases Margins in Dairy Processing
In dairy processing, accuracy is more than a lab metric, it directly impacts efficiency, risk, and profitability. This article explores how improved FT-IR accuracy enables tighter process control, reduces ingredient giveaway, and supports faster, more confident decision-making across production.
Learn More
LactoScope 500
High-performance FT-IR analyzer for accurate and robust dairy testing
The LactoScope™ 500 is a high-performance FT-IR analyzer designed to deliver exceptional accuracy and robustness for dairy testing. Using advanced mid-infrared optics and full-spectrum analysis, it captures a complete chemical fingerprint of each sample, enabling precise measurement of fat, protein, lactose, casein, and total solids in seconds. This allows processors to standardize closer to target, reduce product giveaway, and maintain consistent quality.
Engineered for accuracy across dairy matrices
Engineered for performance across diverse dairy matrices, including milk, cream, whey, and cultured products, the LactoScope 500 minimizes spectral noise and compensates for natural variation. Its integrated dual-stage high-pressure homogenizer ensures consistent sample preparation, while software-enabled de-airing removes air bubbles that can impact accuracy, delivering highly repeatable results.
Designed for high-throughput environments
Built for efficient, high-throughput environments, the system features intuitive software, automated workflows, and a compact, integrated design that reduces operator variability and saves lab space.
With all calibrations included and supported through advanced software tools, the LactoScope 500 simplifies calibration management and ensures long-term performance.
WHERE LACTOSCOPE 500 FITS BEST
Advanced dairy analysis
Complex or variable matrices
High-accuracy environments
Labs requiring robust and repeatable results
The result is a reliable solution for a wide range of dairy products, including high-viscous samples, that improves process accuracy, efficiency, and profitability across medium- and high-volume dairy operations.
LactoScope 300
Compact FT-IR analyzer designed for fast, reliable routine dairy testing.
The LactoScope™ 300 is a compact FT-IR analyzer designed for fast, reliable routine dairy testing. Utilizing proven mid-infrared technology, it delivers accurate measurements of key parameters such as fat, protein, lactose, and total solids in under 45 seconds, enabling efficient quality control and quick decision-making.
Performance & usability
Optimized for standard dairy applications, the LactoScope 300 provides consistent performance across raw and processed milk with minimal sample preparation. Its straightforward operation and intuitive software reduce operator variability, making it ideal for environments where ease of use and dependable results are critical. Compared to the LactoScope 500, which is engineered for advanced applications and complex matrices, the LactoScope 300 focuses on simplicity and efficiency for routine testing needs.
Design & workflow
With a small footprint and integrated design, the system fits easily into laboratory or intake settings, supporting streamlined workflows without sacrificing performance. While the Lactoscope 500 offers enhanced capability for highly viscous products and extended parameter analysis, the LactoScope 300 provides a practical, cost-effective solution for core dairy measurements.
WHERE LACTOSCOPE 300 FITS BEST
Routine milk testing
Intake and quality control labs
High- thoughput environments
Standard dairy applications
The result is a reliable, easy-to-use analyzer for lower throughput environments that delivers the essential accuracy and speed required for non-viscous liquid dairy testing.
How FT-IR Works
Fourier Transform Infrared (FT-IR) spectroscopy is a powerful analytical technique that allows dairy processors to measure multiple components in a sample, quickly and accurately, without complex preparation. It works by passing infrared light through a liquid sample, such as milk, and measuring how that light is absorbed by different chemical bonds.
Measuring Multiple Components Simultaneously
Each component in dairy products, including fat, protein, and lactose, absorbs infrared light at specific wavelengths. FT-IR captures a full spectrum of these absorbance patterns, creating a unique “fingerprint” of the sample. Advanced calibration models then correlate this spectral data to known reference values, enabling simultaneous measurement of multiple parameters in seconds.
Full-Spectrum Analysis with the Interferometer
At the core of FT-IR is an interferometer, which rapidly collects spectral information across the entire mid-infrared range by measuring all wavelengths simultaneously and converting them into a full spectrum. In contrast, filter-based systems measure only a limited number of discrete wavelengths tied to specific components. This full-spectrum approach captures a complete chemical fingerprint of the sample, allowing advanced calibration models to analyze hundreds of data points rather than relying on a few isolated signals. As a result, FT-IR can better resolve overlapping absorbance features and compensate for variations in fat structure, protein composition, and processing conditions.
FT-IR (Full-Spectrum Analysis)
✓Measures the full infrared spectrum
✓ Uses hundreds of data points
✓ Resolves overlapping absorbance features
✓ Compensates for variations in fat structure, protein composition, and processing conditions
✓ Delivers greater accuracy, robustness, and consistency
✓ Well suited for complex or variable dairy products
Filter-Based Systems
✓ Measure only selected wavelengths
✓ Use a limited number of discrete signals
✓ Limited ability to resolve overlapping features
✓ More sensitive to matrix changes
✓ Performance depends on fixed relationships
✓ Best suited for stable and consistent environments
Why It Matters for Dairy Processors
For dairy processors, the value of FT-IR lies in its ability to deliver fast, consistent results that support real-time decision making. Whether standardizing milk, verifying finished product quality, or monitoring process performance, FT-IR provides the insight needed to maintain tight control over key parameters.
Why Homogenization Matters for Accurate Dairy Analysis
In FT-IR dairy testing, sample preparation plays a critical role in achieving accurate and repeatable results.
THE CHALLENGE
Dairy products, particularly milk, cream, and cultured products, contain fat globules that vary in size and distribution. Without proper homogenization, these globules scatter infrared light unpredictably, distorting absorbance signals and leading to errors in key measurements such as fat and protein.
THE SOLUTION
Effective homogenization reduces fat globules to a uniform size, typically below one micron, creating a consistent optical path through the sample. This minimizes light scattering and ensures that the infrared signal reflects true chemical composition rather than physical variability. The result is improved accuracy, better repeatability, and reduced need for replicate testing.
NON-HOMOGENIZED SAMPLE
- Irregular fat globules
vary in size and distribution - Light scattering
is high and unpredictable - Distorted absorbance
signals lead to errors - Lower accuracy
and repeatability
HOMOGENIZED SAMPLE
- Uniform fat globules
typically below one micron - Minimized light scattering
for a consistent optical path - Accurate absorbance
reflects true composition - Higher accuracy
and repeatability
Built-In Precision with the LactoScope 500
The LactoScope 500 integrates a dual-stage high-pressure homogenizer directly into the analytical workflow, eliminating the need for manual sample preparation. By ensuring consistent and complete homogenization for every sample, it delivers stable, reproducible measurements across a wide range of dairy matrices, including high-fat and viscous products.
This integrated approach not only improves analytical performance but also simplifies operation, reducing operator dependency and variability. With fewer repeats and more reliable results, laboratories can increase throughput, reduce wear on consumables, and maintain tighter control over product specifications.
FT-IR (Fourier Transform Infrared spectroscopy) measures how milk components absorb infrared light, enabling rapid, multi-component analysis of fat, protein, lactose, and more in seconds without chemical reagents.
FT-IR provides faster results, lower operating costs, and simultaneous multi-parameter analysis, making it ideal for high-throughput dairy environments compared to slower, single-parameter wet chemistry tests.
FT-IR analyzers can measure fat, protein, lactose, total solids, SNF, casein, urea, and more, supporting both quality control and process optimization across a wide range of dairy products.
Modern FT-IR systems, such as the LactoScope 500, deliver highly repeatable and precise results, often within tight coefficients of variation, when supported by robust calibration and proper sample preparation.
Homogenization ensures uniform fat distribution, reducing light scattering and improving spectral quality. Integrated solutions like the LactoScope 500 help ensure consistent, reliable results across all sample types.
Yes. FT-IR is highly versatile and can analyze cream, whey, yogurt, ice cream mix, and plant-based beverages, enabling a single platform like LactoScope to support multiple applications across the dairy value chain.
FT-IR delivers results in under 30–45 seconds per sample, allowing real-time decision-making in production and significantly increasing lab throughput. The LactoScope 500 delivers results in 30 seconds for a wide range of products.
Absolutely. FT-IR systems are designed for continuous, high-volume testing, with automation features that reduce operator intervention and support consistent performance in demanding environments.
Modern systems like the LactoScope 500 feature intuitive touchscreen interfaces, guided workflows, and automated processes, reducing training requirements and minimizing operator variability.
FT-IR helps processors improve product consistency, reduce giveaway, increase efficiency, and ensure compliance, all while delivering fast, reliable data to support better production decisions.