Your Test Result is Only as Accurate as Your Sample
Aseptic, Representative, and Hygienic Sampling Solutions
QualiTru understands your liquid sampling challenges. Our aseptic and representative sampling solutions for the Dairy and Liquid Food industries are easy to use, versatile and cost-effective. QualiTru’s sampling solutions have proven themselves in installations worldwide since 1983. Our combination of aseptic and representative sampling is unique in the industry.
The Right Sampling Solution for Your Application
Need Help? Let us guide you.
Select your industry and click on your application. We’ll show you the issues we solve using the correct type of sampling, type of testing, and related products.

Application:
Issue
Elevated Preliminary Incubation (PI) counts and Coliforms in raw milk on robot farms
Type of Sampling
Type of Testing
SPC, PI
Issue
Mastitis Management
Type of Sampling
Type of Testing
Somatic Cells
Issue
Nutrition Management/Feed Ration Check
Type of Sampling
Type of Testing
Protein, Butterfat & other solids
Issue
Unreliable payment sampling (on or off tanker trucks)
Unreliable raw milk quality data
Type of Sampling
Type of Testing
Protein, Butterfat & Other Solids

Application:
Issue
- Receiving bay wait times
- Product contamination
- Regulatory compliance
Type of Sampling
Type of Testing
Antibiotic
Issue
Risk of work-related injuries
Type of Sampling
Type of Testing
Antibiotic

Application:
Issue
Bacteriophage invasions
Type of Sampling
Products
Type of Testing
SPC, PI, Coliform
Issue
- Inconsistent microbiological data after pasteurizer or other equipment
- Post-pasteurization contamination
Type of Sampling
Products
Type of Testing
SPC, PI, Coliform
Issue
Unreliable raw milk quality data
Type of Testing
Quality, Microbiology, and Chemical

Application:
Type of Sampling
Products
Type of Sampling
Products
Advancing the Science of Aseptic and Representative Sampling and Educating the Markets We Serve
QualiTru has built a strong reputation for expertise, quality, education, and training over the past 30+ years.
Recent Sampling Posts

Micro Testing for Post-pasteurization Contamination (Part 3)
The first article in this series, Raw Milk Dairy Micro Testing, focused on Gram-negative bacteria in raw milk with the Preliminary Incubation (PI) Count and Fresh Standard Plate Count (SPC)…

Honoring Four Decades of Helping to Ensure Food Safety and Food Quality
On March 22, 2023, the QualiTru team met at the University of Minnesota’s Department of Food Science and Nutrition for an educational pilot plant tour led by Darrell Bigalke, founder…
News & Events
QualiTru Sampling Systems® Marks 40th Anniversary Milestone
QualiTru Sampling Systems (formerly known as QMI), leaders in the science of aseptic and representative sampling equipment for the food and dairy industries, is commemorating its 40th year of innovations that have helped the dairy and liquid food industries produce safe, high-quality products over the decades.
University of Minnesota Honors QualiTru Founder Darrell Bigalke with Food Safety and Food Quality Science Award in His Name
Darrell Bigalke, the founder of QualiTru Sampling Systems and a dairy microbiologist and entrepreneur who has dedicated four decades to ensuring food safety through the revolutionary development of inline aseptic sampling systems for the dairy and liquid food industries, has been honored with the Darrell Bigalke Food Safety & Food Quality Award.
Trade Shows for 2023
- June 13–16: Membrane Technology Forum, Minneapolis, MN
- August 16-18: Northeast Dairy Suppliers Association, Mt Pocono, PA
- October 16-19: IDF World Dairy Summit, Chicago, IL