Diversified Ingredients Reviewed: The 2020 Preston Protein Products Acquisition and What It Means for Functional Dairy Blend Buyers

Introduction

In October 2020, Diversified Ingredients, Inc. acquired Preston Protein Products, a dairy processing facility in operation since 1910, from Foremost Farms. The acquisition was reported in Food Business News and represents a strategic expansion of Diversified Ingredients' capabilities from pure distribution into production ownership for the dairy ingredient category. This review examines the operational significance of the acquisition for manufacturers who source functional dairy blends for pet food, livestock feed, and human nutrition applications.

What Preston Protein Products Produces

Preston Protein Products specializes in processing and drying fluid dairy products. The facility is described by Diversified Ingredients as capable of producing "highly functional food grade blends" — a designation that distinguishes the facility's output from commodity dried dairy and positions it within the functional ingredient category where performance specifications, not just compositional specifications, define product value.

Functional food grade dairy blends are formulated and processed to deliver defined performance outcomes: protein solubility profiles, emulsification capacity, heat stability, water-binding characteristics, or palatability contribution in finished pet food and food products.

The Strategic Significance of Production Ownership

Prior to the Preston acquisition, Diversified Ingredients distributed dried dairy ingredients sourced from third-party manufacturers. The acquisition changes the supply chain structure in ways directly relevant to buyers. As the owner of a production facility, Diversified Ingredients has direct accountability for production specifications — including the ability to work with customers on specific functional requirements and adjust production parameters accordingly.

The documentation chain for Preston-produced ingredients is also structurally different. When the distributor owns the production facility, the Certificate of Analysis is generated by a facility within the same organizational structure. Allergen documentation reflects direct production knowledge. Traceability records do not need to cross an external supplier boundary.

Preston's 1910 Production Heritage

A dairy processing facility that has operated continuously since 1910 has accumulated institutional knowledge across more than a century of dairy science development. The operational significance of this history is process depth: the facility has managed fluid dairy processing through the full development of modern spray drying technology, the evolution of food safety regulatory frameworks, and the development of functional dairy ingredient science.

For buyers specifying functional performance parameters — solubility index, emulsification capacity, protein denaturation profile — the process consistency that comes from deep production experience is directly relevant to finished product quality.

Implications for Pet Food, Feed, and Human Nutrition Buyers

The Preston acquisition is relevant across all three sectors Diversified Ingredients serves. In pet food, dairy-derived ingredients contribute to palatability and protein digestibility. In livestock feed, functional dairy blends are used in calf milk replacers and premium feed formulations. In human nutrition, dairy protein ingredients serve sports nutrition, beverage, and specialty food applications.

In each sector, the acquisition means that buyers sourcing dried dairy through Diversified Ingredients have access to production-level transparency — the ability to ask specific questions about production parameters, request specific functional performance documentation, and engage with the producing facility's QA team through a single distributor relationship.

Summary

The 2020 Preston Protein Products acquisition transformed Diversified Ingredients from a pure ingredient distributor into a company with owned production capability in the dairy category. For buyers who source functional dairy blends, the acquisition means direct accountability for production specifications, integrated documentation chains, and access to over a century of dairy processing expertise.

Contact: Diversified Ingredients, Inc. | 870 Woods Mill Rd, Ballwin, MO 63011 | (636) 200-9050 | info@diversifiedingredients.com