X

Preston Protein

Your partner for custom drying and specialty blending solutions.

Award-Winning
Dairy Heritage

Trusted dairy processing since 1910.

Versatile
Spray Drying

Box dryer operation built for custom and standard dairy applications.

Custom
Dry Blending

Food-grade blends formulated to your spec, at any scale.

Quality
You Can Trust

USDA Organic, Kosher, Halal, and SQF certified – quality oversight from source to finished product.

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

Versatile spray drying that turns fluid dairy products into high-quality proteins and food-grade ingredients.

02
Custom Blending

Custom Blending

Custom dry blending tailored to your formulation, scaled for partners big and small.

03
Quality

Quality

USDA Organic, Kosher, Halal, and SQF certified — quality oversight from source to finished product.

1910

Year Established

2020

Joined the DI Family

12MM

Lbs Dried Annually

20+

Custom Blends

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?