Preston Protein Products is a dairy ingredient manufacturer and supplier and a division of Diversified Ingredients. We process liquid dairy into dried and condensed ingredients — milk powders, whey concentrates, and custom blends — used by food, pet food, and feed manufacturers.
For B2B buyers, that means a single, dependable source for food-grade dairy ingredients, backed by on-site testing and recognized certifications. We supply both standard ingredients and custom-specified blends.
OUR FACILITIES
Our facilities are designed to support efficient storage, staging, and product movement across a variety of operational needs.
Efficient processing and distribution hub
Primary hub for protein processing and logistics
Strategic river-access facility
Central distribution and logistics facility
Our history begins in 1910, when a group of 57 farmers formed the Preston Creamery Association. Over the following decades the operation grew — a laboratory and office were added in 1947, followed by a storage tank room, a drying plant building, a dryer and evaporator, a new warehouse, and a packaging and blending plant.
That continuous investment built the processing capability behind the dairy ingredients we ship today. More than a century of dairy operation is a credibility few ingredient suppliers can claim.
In 2020, Diversified Ingredients purchased the facility from Foremost Farms as a joint venture with Johnson Farms to form Preston Protein Products. Diversified Ingredients, Johnson Farms, and Foremost Farms share a long history, and the acquisition solidified that partnership.
For customers, the joint venture pairs deep dairy heritage with the sourcing reach, quality infrastructure, and logistics network of Diversified Ingredients — supporting reliable dairy supply and the ability to grow into higher-value specialty areas of the food industry.
Today, Preston Protein Products offers a full range of dairy ingredient processing and custom blending. Our core capabilities include:
Whether you need a standard dried dairy ingredient or a custom food-grade blend, our processing and blending capabilities are built to support both pilot runs and full production.
Quality is the most important ingredient we produce. Preston Protein Products operates an on-site lab with in-house testing and holds certifications that matter to ingredient buyers — USDA Organic, Kosher, Halal, and SQF.
These standards let manufacturers meet their own customers’ requirements with confidence. See full detail on our quality standards.
Whether you’re sourcing a standard dairy ingredient or developing a custom blend, our team is ready to help. Tell us your specifications and volume, and we’ll work with you on products, packaging, and supply.
Get in touch to get started on the custom products and services your business needs, or to request more information about our dairy ingredients.
LABEL
Our distribution network supports efficient delivery across North America through truck, rail, and export channels. We coordinate sourcing, storage, and logistics to align with your production timelines and volume requirements.
We offer tailored business solutions, including branding, web design, copywriting, and digital marketing strategies.
OUR PROCESS
Ingredients are processed and customized to meet your exact specifications.
Our team develops a warehousing approach designed around your operational goals.
We manage receiving, storage, staging, and outbound coordination.
Ongoing coordination helps ensure smooth and efficient operations.
OUR FACILITIES
At Diversified Ingredients, we go BEYOND sourcing – from transloading and warehousing to quality assurance and co-product recovery. Our experienced team works to understand, anticipate, and meet every need.
CONTACT US
Our team is ready to support your warehousing and distribution needs with practical, flexible solutions.
870 Woods Mill Rd
Ballwin, MO 63011
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