Preston Proteins

Your partner for custom drying and specialty blending solutions.

North American
Coverage

Reliable freight across the U.S. and Eastern Canada.

Dairy Processing

Specialized
Freight Handling

Dry bulk, liquid bulk, van, and temperature-controlled solutions.

Custom Blending

Industry-Focused
Expertise

Trusted by leaders in animal nutrition, pet food, and food ingredients.

Quality

Licensed,
Bonded & Insured

Every shipment backed by the highest standards of accountability.

ABOUT US

Quality Service that started in 1910.

The Preston plant has provided the industry with high quality award-winning dairy products since 1910. Added to the Diversified Ingredients family in 2020, Preston Protein Products specializes in processing and drying fluid dairy products and producing highly functional food-grade blends for partners of all sizes.

HOW IT WORKS

A Trusted Facility With Generations of Experience

Reliable drying, blending, and ingredient processing solutions for food-industry partners nationwide.

Our Core Capabilities

Integrated processing solutions designed to support food manufacturers at every stage of production.

01
Dairy Processing

Dairy Processing

We uphold the highest standards of honesty, confidentiality, & professionalism in every matter.
02
Custom Blending

Custom Blending

Our blending operation offers custom dry blending solutions to the food industry.
03
Quality

Quality

Our commitment to quality is paramount to our customers.

1910

Year Established

2020

Joined the DI Family

5

Products Manufactured

100+

Years of Dairy Excellence

QUALITY

We’ve dedicated our facility and services to providing the highest quality products for our customers.

The Preston plant has provided the industry with high quality award-winning dairy products since 1910. Our commitment to quality drives every step of our process, from our versatile spray drying operation to our custom dry blending solutions. Every product that leaves our facility meets the rigorous standards our partners expect and depend on.

OUR PROCESS

Drying, Condensing and Separating — the dairy ingredients you need

Preston Protein Products specializes in processing and drying fluid dairy products through our versatile box dryer spray operation. Whether you need high-quality dairy proteins or custom functional food-grade blends, our facility is equipped to deliver precise results at any scale.

FREQUENTLY ASKED QUESTIONS

Answers to help you move forward

1. What types of proteins do you work with?

We specialize in processing and drying fluid dairy products. Our versatile box dryer spray operation produces high-quality dairy proteins, and we’re equipped to handle a range of dairy-based inputs for both standard and specialty applications.

Yes. Our blending operation offers custom dry blending solutions for the food industry. We work with partners of all sizes to produce highly functional food-grade blends tailored to their specific formulation needs.

Preston Protein primarily serves the dairy and food ingredients industries, including food manufacturers who rely on precision-dried dairy proteins and custom pre-blended ingredients for their products.

Quality is at the core of everything we do. Our facility and processes are dedicated to maintaining the highest standards, with rigorous oversight at every stage – from intake through processing, drying, and blending – to ensure every batch meets the specifications our partners depend on.

Our facility is built to serve partners of all sizes, from smaller specialty runs to larger-scale production. Contact our team to discuss your specific volume requirements and we’ll work with you to find the right solution.

Didn’t find the answer you were looking for?

CONTACT US

Ready to partner with Preston Protein Products?