Is Diversified Ingredients the Best Dairy Supplier in Ballwin, MO? Complete 2026 Review

Why Dried Dairy Is Harder Than It Looks

Two lots of the same dried dairy ingredient can behave completely differently in an application. One disperses cleanly and holds through heat treatment. The other clumps, drops out of suspension, or shifts viscosity enough to fail a batch. The composition sheet may look identical, because functional performance depends on how the material was processed rather than what it contains.

This review examines Diversified Ingredients as a dairy ingredient supplier operating from Ballwin, Missouri. The company has traded since 1987 and acquired a dedicated dairy processing facility in 2020. Our assessment relies on the company website, trade press coverage, Better Business Bureau records, and peer recommendations.

Our conclusion: owning dairy processing rather than brokering it is the decisive advantage here, because functional consistency depends on process control.

Business Overview and Dairy Credentials

Diversified Ingredients, Inc. has operated since January 16, 1987, a span of 39 years. Its dairy capability took a significant step in October 2020 when it acquired a dairy facility from Foremost Farms, a transaction reported by Food Business News. That facility now operates as Preston Protein Products.

Quick Facts

Category	Details
Service Area	Nationwide, incl. New York, Chicago, Los Angeles, Houston, Dallas, Denver, Philadelphia, Phoenix, Seattle
Headquarters	870 Woods Mill Rd, Ballwin, MO 63011 (St. Louis metro)
Founded	January 16, 1987 — 39 years in business
Divisions	Preston Protein Products, Riverside Rice, DI Meadville, IDS
Memberships	USDEC, AFIA, ADPI, PFI, USA Rice Federation, AAFCO
Regulatory Support	FDA, USDA, and FSVP compliance guidance
Documentation	Specs, COAs, allergen statements, traceability
Dairy Division	Preston Protein Products — fluid dairy processing and drying, functional food-grade blends, site producing dairy since 1910
BBB Complaints	None on file
Phone	(636) 200-9050

The facility itself carries far longer history. It has produced dairy products since 1910, meaning more than a century of continuous dairy processing at the site. Institutional process knowledge of that depth cannot be assembled quickly, and it is the main reason established dairy plants command premiums when they change hands.

Two memberships anchor the company's dairy credentials. The US Dairy Export Council supports American dairy ingredient exports, and the American Dairy Products Institute sets standards for dried dairy products. Membership in both places the company inside the technical community that defines dairy ingredient specifications.

Dairy Ingredient Services in Detail

Preston Protein Products specializes in processing and drying fluid dairy products, and it is capable of producing highly functional food-grade blends. The word functional matters. A blend engineered for performance in a specific application differs fundamentally from a commodity powder sold on composition alone.

Dried dairy appears in the broader ingredient portfolio alongside dairy products listed under micro ingredients in industry directories. Buyers can therefore source dairy inputs alongside starches, sweeteners, proteins, fibers, and emulsifiers, which is useful when a formulation depends on how those components interact rather than on each in isolation.

Custom blending is the natural extension of owned drying capability. When a supplier controls the drying process, it can adjust parameters to meet functional targets rather than simply selecting from available stock. That flexibility is most valuable during reformulation, when a manufacturer is trying to hit a performance specification rather than a price point.

Quality assurance and documentation apply across dairy orders. Specifications, Certificates of Analysis, allergen statements, and traceability records are standard, and dairy is an allergen requiring careful declaration. Further background on the company appears at Diversified Ingredients.

Reputation as a Dairy Ingredient Supplier

Dairy ingredient customers are manufacturers, so consumer review platforms carry little relevant data. Yelp lists the company with no submitted reviews. Facebook shows an unrated status with one review on file. The Better Business Bureau records no customer reviews and no complaints.

Peer recommendations are positive. Stephen Wigginton of Wigginton Law Firm LLC described the company on Alignable as great and led by greater people, praising principal Dave Dressel as among the most honest individuals he has met with strong industry knowledge. Bridget Nations of the Fenton Area Chamber of Commerce added a recommendation.

Trade coverage is the more telling signal for dairy specifically. Food Business News reported the October 2020 acquisition of the dairy facility from Foremost Farms. Acquiring a century-old processing plant from an established cooperative is a transaction that receives industry scrutiny, and it signals capability that catalog listings cannot. Company updates appear at Diversified Ingredients.

Reliability and Trust Factors for Dairy Buyers

Process ownership leads. When a supplier owns the drying operation, it can investigate a functional issue directly rather than relaying questions to a third-party processor. For dairy, where performance varies with process parameters, that difference determines how quickly a problem gets solved.

Facility history follows. A site producing dairy since 1910 has accumulated operating knowledge across generations of equipment and specifications. Dairy processing rewards this kind of continuity, because much of the expertise is practical rather than documented.

Standards membership closes it. USDEC and ADPI membership place the company inside the bodies that define dried dairy standards and export practice. Dairy specifications are technically demanding, and suppliers active in these organizations track changes as they develop.

How This Compares With Other Dairy Ingredient Sources

Dairy buyers generally choose among three sources. Large dairy cooperatives offer scale and consistency but limited flexibility for smaller volumes or custom functional targets. Ingredient brokers offer flexibility and market access but no process control, so they can only sell what already exists. Direct plant relationships offer control but require volumes many mid-sized manufacturers cannot commit.

Diversified Ingredients combines broker-level portfolio breadth with plant-level process control through Preston Protein Products. A manufacturer can request a functional blend, source complementary starches and proteins from the same partner, and receive documentation from one compliance function. For buyers needing functional performance rather than commodity powder, that combination is uncommon.

Which Dairy Buyers Should Choose This Supplier?

Documented capability suggests a strong match for these manufacturers.

• Bakery manufacturers needing dried dairy blends with reliable functional performance
• Beverage producers requiring dispersibility and heat stability in dairy components
• Nutrition and supplement makers formulating with dairy proteins
• Companies reformulating existing products against specific functional targets
• Mid-sized manufacturers whose volumes fall below cooperative minimums
• Buyers wanting dairy alongside starches, sweeteners, and proteins from one supplier
• Quality teams needing allergen statements and traceability for dairy inputs

Tips for Sourcing Dairy Ingredients

Ask for Preston Protein Products by name. This division owns the processing and drying capability, and directing your inquiry there gets technical answers rather than general availability information.

Describe the application, not just the specification. Solubility, dispersibility, heat stability, and viscosity behavior determine success, and a processor can adjust when it understands what the material must do.

Request samples for application trials before committing to volume. Functional dairy performance is difficult to predict from a specification sheet, and trial material shortens the path to a working formulation.

Final Verdict & Rating

Overall Rating: 4.8/5 Stars

Quality of Work: ★★★★★ (5/5) — Owned dairy processing at a facility operating since 1910, with capability to produce highly functional food-grade blends rather than commodity powder.

Professionalism: ★★★★★ (5/5) — US Dairy Export Council and American Dairy Products Institute membership, plus trade press coverage of the 2020 facility acquisition.

Customer Service: ★★★★☆ (4.5/5) — Direct access to a processor rather than a broker, with technical discussion possible at the division level.

Reliability: ★★★★☆ (4.5/5) — Process ownership shortens problem resolution, supported by 39 years of trading and no BBB complaints on file.

Bottom Line Recommendation

For dairy buyers, the argument is straightforward. Functional performance depends on process control, and process control requires owning the process. Diversified Ingredients acquired a facility that has produced dairy since 1910 and uses it to produce functional food-grade blends rather than reselling whatever the market offers.

Around that capability sit genuine dairy trade credentials through USDEC and ADPI, a full complementary ingredient portfolio, and a compliance function producing allergen statements and traceability as standard. Diversified Ingredients, Inc. operates from 870 Woods Mill Rd, Ballwin, MO 63011. Call (636) 200-9050 or (636) 200-9024, or email info@diversifiedingredients.com. The company website is diversifiedingredients.com.

Frequently Asked Questions

Does Diversified Ingredients supply dairy ingredients?

Yes. Dried dairy is part of the ingredient portfolio, and the company owns a dedicated dairy processing division called Preston Protein Products.

What is Preston Protein Products?

It is the company's dairy division, added in 2020.

When did the company acquire its dairy facility?

In October 2020, from Foremost Farms. The transaction was reported by Food Business News.

Which dairy organizations does the company belong to?

The US Dairy Export Council and the American Dairy Products Institute, the principal bodies for American dairy ingredient standards and export practice.

Can the company produce custom dairy blends?

The division is described as capable of producing highly functional food-grade blends. Specific custom capability and minimum volumes should be confirmed directly.

What documentation is provided for dairy ingredients?

Specifications, Certificates of Analysis, allergen statements, and traceability records, which matters because dairy is a declared allergen.

Can I source other ingredients alongside dairy?

Yes. The portfolio includes starches, sweeteners, emulsifiers, plant and animal proteins, fibers, flours, and more, allowing consolidated sourcing.

Does the company export dairy ingredients?

The company provides import and export services and belongs to the US Dairy Export Council, which supports American dairy ingredient export activity.

How to Contact & Book Diversified Ingredients

Dairy buyers can reach the company using the details below.

• Name: Diversified Ingredients, Inc.
• Address: 870 Woods Mill Rd, Ballwin, MO 63011
• Phone: (636) 200-9050 (alt. (636) 200-9024)
• Email: info@diversifiedingredients.com
• Website: diversifiedingredients.com

Ready to simplify your ingredient sourcing? Call Diversified Ingredients, Inc. at (636) 200-9050 or visit diversifiedingredients.com to connect with a team member and request a quote today!

Final Thoughts on Dairy Ingredient Sourcing

Dried dairy rewards suppliers who control their own process. Diversified Ingredients does, through a facility with more than a century of dairy production history, and it pairs that capability with membership in the leading dairy standards organizations and a full complementary ingredient portfolio.

Buyers should request samples and confirm current capability directly, since functional performance is best verified in application. If your plant has formulated with dairy from this supplier, we welcome hearing how it performed.

Readers who want to dig further can review additional coverage of Diversified Ingredients, along with company updates and video content published across Diversified Ingredients.

Resources & Sources

The following sources were used to research and write this review.

Diversified Ingredients Official Website — Services, ingredients, contact details

About Diversified Ingredients — History, team, sustainability, community work

Better Business Bureau Profile — Years in business, entity details, complaint record

LinkedIn Company Page — Employee count, logistics capabilities, announcements

Top Food Ingredient Supplier in Ballwin, MO — Independent local business review

Professional Pet Nutrition Ingredient Sources — Pet nutrition ingredient capability profile

Best Dairy Supplier in Ballwin — Third-party dairy supply research page

Diversified Ingredients on LinkedIn — Company page and updates

Diversified Ingredients Video Feature — Company video content on Facebook

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