Fluid Milk Manufacturing (United States)

An investor's primer on NAICS 2022 code 311511

1. Overview

Fluid milk manufacturing is the business of turning raw farm milk into the cartons and jugs of drinkable milk, cream, and related refrigerated products that fill grocery dairy cases. It is a large, mature, and slowly shrinking industry: Americans drink less milk every year, yet fluid milk remains a roughly $50-billion-a-year manufacturing sector and a grocery-store staple [1][2].

Why an investor cares: this is a thin-margin, volume-driven commodity business with a structural demand headwind (per-person milk drinking has fallen for 80 years) but pockets of genuine growth in "value-added" milk — high-protein filtered milk, lactose-free, organic, and plant-based substitutes. The winners are the companies that escape the commodity trap.

Public vs. private ways in: there is no large publicly traded pure-play U.S. fluid-milk company. The last one, Dean Foods, went bankrupt in 2019 [7]. Today, public exposure comes as a slice of diversified consumer giants — most notably Coca-Cola, which owns the fast-growing fairlife milk brand [9]. Much of the industry is owned by farmer cooperatives (Dairy Farmers of America, Land O'Lakes, Prairie Farms) and private/foreign firms (Lactalis, HP Hood, Schreiber) that ordinary investors cannot buy directly [5][6].

2. What it is and how it's structured

Scope (what's in 311511). Establishments primarily engaged in (1) processing raw milk into fluid products — pasteurized milk and cream, sour cream, buttermilk, cottage cheese, non-frozen yogurt, flavored/chocolate milk, whipping cream, non-dairy liquid creamers — and (2) making fluid milk substitutes from soybeans, oats, almonds, and other non-dairy sources [11]. Plant-based "milks" are counted here, an important detail for investors tracking oat and almond milk.

Operating model. A conventional plant receives refrigerated raw milk by tanker, tests it, separates and standardizes butterfat, pasteurizes it, usually homogenizes it, adds vitamins or flavorings as required, and packages it for refrigerated distribution. The same plant may make cream, sour cream, buttermilk, cottage cheese, cultured products, private-label milk, or nondairy beverages. Extended-shelf-life and aseptic lines add filtration, more intensive heat treatment, and specialized sterile packaging. The FDA's Grade "A" Pasteurized Milk Ordinance is the industry's core process and sanitation standard [12].

What it excludes (adjacent NAICS codes). This code is one slice of dairy processing. Neighboring codes:

• 311512 Creamery Butter
• 311513 Cheese Manufacturing
• 311514 Dry, Condensed, and Evaporated Dairy Products (includes powdered and UHT/shelf-stable milk)
• 311520 Ice Cream and Frozen Dessert Manufacturing
• 112120 Dairy Cattle and Milk Production — the farms that produce the raw milk; a supplier to this industry, not part of it [11].

Ownership mix. Three ownership types dominate:

1. Farmer cooperatives — owned by dairy farmers, who supply the milk and share the processing profit. Dairy Farmers of America (DFA), the largest, represents about 5,000 dairy farms and reported about $23 billion in total revenue in 2024 (across all dairy, not just fluid) [6]. Prairie Farms, the country's second-largest fluid-milk processor, operates 30 fluid-milk plants that processed 7.5 billion pounds in fiscal 2023 [13]. Land O'Lakes is also a co-op.
2. Private and foreign-owned processors — France's Lactalis, HP Hood, Schreiber Foods (employee-owned), and others.
3. Public-company divisions — Coca-Cola (fairlife), Nestlé (Coffee-Mate creamers), Danone (Silk, creamers, Horizon), Canada's Saputo, and a few small-caps.

Retailers such as Kroger and Walmart also operate their own captive milk plants to supply store-brand milk — a structurally important, largely invisible piece of the industry. Kroger reported owning 14 dairies as of February 2025 [14]. Walmart has built milk plants to supply its own stores; its Georgia facility carried a $350 million investment and was designed to serve more than 750 Walmart and Sam's Club stores [15].

3. How big it is

Federal statistics (our ground-truth figures):

Volume context. The $50.6 billion receipts figure includes the full NAICS product mix (cottage cheese, creamers, plant-based, etc.) and should not be read as the size of the conventional drinking-milk market alone. By physical volume, USDA reports that fluid beverage milk sales fell from 55.4 billion pounds in 2009 to 43.2 billion pounds in 2024, a 22% decline over 15 years [3].

Undercount / classification caveats. Unlike industries dominated by government or by tiny sole proprietors, fluid milk is a genuinely industrial sector and federal counts capture it well. Two nuances matter for reading these numbers:

• The "241 firms" and concentration figures understate real concentration, because large cooperatives and retailer-owned captive plants span multiple categories or get classified under their parent's primary industry (e.g., grocery retail). DFA's $23 billion, for instance, dwarfs the whole 311511 receipts line because it spans cheese, ingredients, and marketing raw milk, not just fluid processing [6][2].
• Plant count is falling as demand shrinks and plants consolidate — the establishment count reflects an industry in slow contraction.

For context on the raw material: U.S. dairy farms produce well over 200 billion pounds of milk a year, but only a minority of that milk ends up as fluid beverage milk — most is turned into cheese, butter, and powder [3].

4. The investable universe

There is no pure-play U.S. fluid-milk stock of any size. Public exposure is indirect. Key names:

Note on SunOpta: SunOpta is no longer a public plant-based-milk exposure. Refresco completed its acquisition for $6.50 per share on May 1, 2026, after which SunOpta was delisted from Nasdaq and the Toronto Stock Exchange [19].

Major private / cooperative owners you cannot buy shares in: Dairy Farmers of America (co-op, #1) [6], Land O'Lakes (co-op), Prairie Farms (co-op), Lactalis American Group (French, family-owned), HP Hood (private; makes Lactaid, fairlife-style and store-brand milk), Schreiber Foods (employee-owned), and Select Milk Producers (co-op, co-founder of fairlife) [5][7].

Takeaway: to invest in this industry publicly, you are really buying a branded, value-added milk franchise inside a larger company (Coca-Cola's fairlife is the cleanest example), not commodity milk processing itself.

5. How the money works

Fluid milk is a spread business layered on a regulated commodity. Understanding the economics means understanding four things:

1. Raw milk is a regulated, pass-through input. Processors buy raw farm milk at minimum prices set by USDA Federal Milk Marketing Orders (FMMOs) — a Depression-era system that sets a floor price for "Class I" (beverage/fluid) milk, generally the highest-priced class because fluid milk must be fresh and local [8]. Because the milk cost is largely passed through, a processor's own profit is the processing-and-packaging spread, not the milk commodity price.

2. Margins are razor-thin on commodity milk. Conventional, private-label jug milk earns gross margins in the low single digits (roughly 1–5%), because retailers treat milk as a loss leader / traffic driver and private-label store brands hold around 60–64% of the fluid market. Success on commodity milk is about plant throughput, capacity utilization, labor efficiency, and freight [3]. Labor and packaging together are the biggest cost lines after milk itself.

Historical context: Dean Foods' 2018 annual report — its last normal filing before bankruptcy — illustrates commodity fluid-milk economics: $7.755 billion of sales with a 21.3% gross margin, down from 25.8% in 2016. Selling and distribution alone consumed 18.1% of sales. Its largest customer represented 15.3% of sales [20]. Those figures should not be treated as current industry benchmarks but show the sensitivity of this business to volume, mix, and customer concentration.

3. Freight makes it a regional business. Milk is ~90% water, heavy, and perishable, so it ships short distances. Plants serve regional markets, which means national market-share statistics understate how concentrated any given city's milk supply is — a handful of plants may serve an entire region.

4. Value-added is where the profit is. The escape from commodity economics is premium product: ultra-filtered high-protein milk (fairlife), lactose-free (Lactaid), organic, flavored, and creamers carry far higher margins and are growing while plain white milk shrinks. This is the single most important strategic fact in the industry — and the reason fairlife's growth is the marquee investment story [9]. By contrast, Lifeway Foods — whose flagship product is branded kefir rather than commodity gallon milk — reported a 27.4% gross margin in 2025, demonstrating the value-added premium [18].

For cooperative owners, the model is different: farmer-members are paid for their milk and receive a share of the co-op's processing profit as patronage dividends, so the co-op captures the processing margin and returns it to the farm.

6. What drives demand

• Long-run decline in milk drinking. Per-person fluid milk consumption has fallen for roughly 80 years — from about 196 pounds per person in 2000 to about 127 pounds in 2024, and down roughly 47% since 1975 [3][4]. This is the dominant, structural fact of the industry.
• Demographics. Milk is heavily consumed by children; a shrinking share of kids in the population and school enrollment trends directly reduce volume [3].
• Beverage competition. Bottled water, sodas, energy drinks, coffee, and plant-based alternatives all compete for "share of stomach" [3].
• Mix shift within dairy milk. While total volume falls, whole milk's share has risen — from a low of 26% in 2012 to 39% in 2024. Reduced-fat milk represented about 30% in 2024, while low-fat and skim combined were 16% [3]. This contradicts the simple narrative that consumers are uniformly moving toward lower-fat milk.
• Health and protein trends — a partial tailwind. The exception to the decline is high-protein and functional milk: fairlife and similar filtered products have grown from near-zero to multibillion-dollar sellers by repositioning milk as a protein/wellness product [9].
• Plant-based substitutes (inside this code). Oat, almond, and soy "milks" grew fast in the 2010s but contracted about 5% to ~$2.5 billion in 2024, with almond down and oat roughly flat — the category has matured and faces its own nutrition scrutiny. USDA research concludes that plant-based alternatives explain only a small portion of dairy milk's decline; Americans were already drinking milk less frequently before plant alternatives became large [10][21].
• School, foodservice, and export channels. School milk programs and away-from-home consumption swing volumes (the COVID school/restaurant shutdown was a severe demand shock) [7].

7. Regulation

• Federal Milk Marketing Orders (FMMOs). The defining regulatory feature: USDA sets minimum prices processors must pay farmers for beverage-class ("Class I") milk. In November 2024 USDA finalized the most significant FMMO overhaul in over two decades — updating the Class I price formula (returning to the "higher-of" skim-milk mover), manufacturing allowances, and Class I location differentials — approved by farmer referendum and effective June 1, 2025 (with some composition changes from December 1, 2025) [8]. These changes shift how the farm-milk price is set and are a live variable for processor input costs.
• Food safety. The FDA Pasteurized Milk Ordinance (PMO) governs Grade "A" milk sanitation, pasteurization, and interstate shipment; state agriculture departments inspect plants. Pasteurization is mandatory for retail fluid milk. FDA reports that approximately 99% of the commercial milk supply produced on U.S. farms comes from farms participating in the Grade A system. FDA testing found commercial high-temperature, short-time pasteurization effective against H5N1, with no viable virus detected in 297 retail dairy samples tested in its initial survey [12][22].
• Labeling. Standards of identity, nutrition labeling, and the contested question of whether plant-based products may use the word "milk" fall under FDA.
• Antitrust. Consolidation is scrutinized: when DFA bought most of bankrupt Dean Foods' plants in 2020, the Department of Justice required divestitures of three plants to preserve regional competition [7].

8. Competitive dynamics and consolidation

Fluid milk has been through a wave of failure and consolidation. The pivotal event was Dean Foods — long the nation's largest milk processor with ~57 plants and brands like TruMoo and DairyPure — filing for bankruptcy in November 2019 as volumes fell and retailers shifted to private label and even built their own milk plants. In 2020, DFA bought 44 of its plants for $433 million and Prairie Farms took eight more, subject to DOJ-ordered divestitures [7][23].

The competitive picture today:

• National concentration is moderate — the top 4 firms hold about 40% of receipts, top 8 about 54%, top 20 about 75% — with a Herfindahl-Hirschman Index around 650, which is technically "unconcentrated" by federal antitrust benchmarks [2]. But because milk is a regional product, local concentration is far higher than these national figures suggest.
• Retailer power and vertical integration. Grocers (Kroger, Walmart) run their own dairy plants and use milk as a loss leader, squeezing independent processors' margins and driving smaller plants out. Retail vertical integration is an equally important structural change as traditional consolidation — it removes volume from independent processors and increases retailer bargaining power even when consumer demand is unchanged [14][15].
• The value-added arms race. With plain milk shrinking, competition has shifted to premium innovation — ultra-filtered protein milk, lactose-free, organic, and creamers — where Coca-Cola's fairlife has been the standout winner.

9. Risks

• Structural volume decline. The core product (drinkable white milk) is in a decades-long per-capita fall with no sign of reversal [3][4].
• Commodity/margin squeeze. Loss-leader pricing, private-label dominance, and retailer-owned plants keep commodity-milk margins near breakeven; overcapacity as demand shrinks forces plant closures [3][7].
• Input-cost and pricing volatility. Farm milk prices (set partly by FMMO formulas that just changed in 2025), feed costs, and dairy-commodity cycles swing processor economics [8].
• Channel shocks. Heavy reliance on schools and foodservice makes the industry vulnerable to disruptions (as COVID demonstrated) [7].
• Substitution both ways. Plant-based alternatives take share from dairy, but plant-based itself is now shrinking — leaving processors exposed on both sides [10].
• Perishability and freight. Short shelf life and high shipping cost limit geographic reach and pricing flexibility.
• Labor and safety. Skilled maintenance and quality-control staffing, sanitation work, route drivers, and workplace injuries are ongoing concerns. BLS reported a 2024 total-recordable injury and illness rate of 4.7 cases per 100 full-time workers for fluid milk manufacturing [24].
• Concentration/antitrust scrutiny on any further consolidation [7][23].
• Animal disease and supply disruption. H5N1 avian influenza in dairy cattle is primarily a farm-supply, confidence, testing, and continuity risk for pasteurized processors — FDA testing confirms properly pasteurized retail milk is safe, but outbreaks can disrupt raw-milk supply and shake consumer confidence [22].

10. How to invest and the outlook

Public-market routes.

• Cleanest exposure: Coca-Cola (KO) via fairlife — the rare high-growth, high-margin fluid-milk franchise; but it is a small part of a beverage giant, so it is a tilt, not a pure bet. Coca-Cola does not disclose fairlife as a standalone segment [9][16].
• Diversified food majors: Nestlé (NSRGY), Danone (DANOY), Saputo (SAP/SAPIF) — each holds meaningful U.S. fluid/creamer/plant-based assets, again diluted within larger portfolios [5][17].
• Plant-based and niche small-caps: Oatly (OTLY), Lifeway (LWAY), Hain (HAIN) — higher-risk, category-specific plays; note plant-based sales are currently contracting [10].
• Vertically integrated retailers: Kroger (KR), Walmart (WMT) — provide exposure to dairy manufacturing, although dairy operations are immaterial relative to their retail businesses and profitability is not separately reported [14][15].
• There is no broad ETF or pure-play for U.S. fluid milk; investors approximate it through consumer-staples and agriculture funds.

Private-market routes.

• Direct ownership sits mostly in farmer cooperatives (join by farming) and private/foreign processors — accessible to strategic and private-equity buyers, not public investors. Outside investors generally cannot buy ordinary equity in farmer-owned DFA or Prairie Farms; ownership is tied to cooperative membership.
• Private-investor angles: branded value-added milk startups (protein, functional, A2, lactose-free), regional/organic processors, and co-packing/contract manufacturing capacity, where premiumization can support real margins.
• Underwriting should focus on plant utilization, customer and route concentration, contract duration and pass-through terms, maintenance capital, wastewater capacity, milk-shed security, and the percentage of earnings coming from differentiated products.

Near-term drivers to watch (forward-looking).

1. Continued premiumization — whether high-protein/functional milk keeps growing fast enough to offset commodity decline; fairlife's trajectory is the bellwether.
2. The 2025 FMMO changes working through farm-milk prices and processor input costs [8].
3. Plant-based stabilization — whether oat/almond sales find a floor after the 2024 contraction [10].
4. Further plant rationalization and consolidation as volume keeps falling.

Bottom line: a large but structurally declining commodity industry where the money — for both public and private investors — is made not in plain milk but in the value-added, branded, protein-and-wellness segments that are growing on top of a shrinking base.

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Sources

1. U.S. Census Bureau, County Business Patterns (CBP) 2023 — NAICS 311511, and U.S. Small Business Administration, Table of Size Standards (2023). (Establishments, employment, payroll, size threshold; via ingested federal statistics.) https://www.census.gov/programs-surveys/cbp.html
2. U.S. Census Bureau, 2022 Economic Census — Concentration & receipts, NAICS 311511, 2022. (Receipts $50.6B; firm count; CR4/CR8/CR20/CR50; HHI.) https://www.census.gov/programs-surveys/economic-census.html
3. U.S. Department of Agriculture, Economic Research Service, Dairy — Background, Examining the Decline in U.S. Per Capita Consumption of Fluid Cow's Milk, and Charts of Note: Fluid milk sales, 2022–2024. (Volume decline 55.4B to 43.2B lbs; whole milk share trends.) https://www.ers.usda.gov/topics/animal-products/dairy/background
4. Statista, U.S. per capita consumption of fluid milk products, 2024 (127 lbs; ~47% decline since 1975). https://www.statista.com/statistics/184240/us-per-capita-consumption-of-fluid-milk-products/
5. Dairy Foods, "Annual Dairy 2025 Top 100" (processor rankings; Danone North America revenue), 2025. https://www.dairyfoods.com/articles/98403-annual-dairy-2025-top-100
6. Dairy Farmers of America, "Who We Are" and "Our Cooperative" (~5,000 dairy farms; $23B revenue; farmer-owned co-op structure), 2025. https://www.dfamilk.com/who-we-are
7. U.S. Department of Justice, "Justice Department Requires Divestitures as Dean Foods Sells Fluid Milk Processing Plants to DFA out of Bankruptcy," 2020; Food Dive, "How Dean Foods' bankruptcy is a 'warning sign' to the milk industry," 2019. https://www.justice.gov/archives/opa/pr/justice-department-requires-divestitures-dean-foods-sells-fluid-milk-processing-plants-dfa
8. USDA Agricultural Marketing Service, Final Rule on Amendments to the Federal Milk Marketing Orders (Class I formula reform; effective June 1, 2025), 2024–2025. https://www.ams.usda.gov/content/usda-issues-final-rule-amendments-federal-milk-marketing-orders
9. The Coca-Cola Company / fairlife press materials and CNN Business, "Coca-Cola needs to diversify. Its way in may be milk" (fairlife ~$4B retail sales 2024), 2025. https://www.cnn.com/2025/02/16/business/coca-cola-fairlife-milk
10. AgFunderNews, "US retail sales of plant-based milk by numbers," and Food Institute, "Innovation and Inflation… Plant-Based Milk Market" (~$2.5B, −5.2% in 2024; almond/oat detail), 2024. https://agfundernews.com/us-retail-sales-of-plant-based-milk-by-numbers-coconut-is-up-almond-is-down-soy-and-oat-are-flat
11. NAICS Association, NAICS Code 311511 — Fluid Milk Manufacturing (definition, included products, cross-references to 311512/311513/311514/311520), 2022. https://www.naics.com/naics-code-description/?code=311511
12. U.S. Food and Drug Administration, Grade "A" Pasteurized Milk Ordinance (PMO), National Conference on Interstate Milk Shipments model documents. https://www.fda.gov/food/milk-guidance-documents-regulatory-information/national-conference-interstate-milk-shipments-ncims-model-documents
13. Dairy Foods, "Inside the Plant: Prairie Farms" (30 fluid-milk plants; 7.5B lbs processed in fiscal 2023), April 2024. https://digitaledition.dairyfoods.com/april-2024/inside-the-plant/
14. Kroger Co., 2024 Form 10-K (14 dairies as of February 1, 2025). https://www.sec.gov/Archives/edgar/data/56873/000155837025004267/kr-20250201x10k.htm
15. Associated Press, "Walmart opens $350 million milk processing plant in Georgia" (750+ stores served), 2018. https://apnews.com/article/a5c9b8b8dab6876e5f6155aacc38ad28
16. The Coca-Cola Company, 2025 Form 10-K ($6.1B final milestone payment related to fairlife acquisition). https://www.sec.gov/Archives/edgar/data/21344/000162828026010047/ko-20251231.htm
17. Saputo Inc., Investor Relations — Investor Toolkit. https://www.saputo.com/en/investors/investor-toolkit
18. Lifeway Foods Inc., 2025 Form 10-K ($212.5M sales; 27.4% gross margin). https://www.sec.gov/Archives/edgar/data/814586/000168316826001886/lifeway_i10k-123125.htm
19. SunOpta Inc., SEC Form 8-K (Refresco acquisition completed May 1, 2026 at $6.50/share; delisting). https://www.sec.gov/Archives/edgar/data/351834/000119312526202554/d365148dex991.htm
20. Dean Foods Co., 2018 Form 10-K ($7.755B sales; 21.3% gross margin; historical processor economics). https://www.sec.gov/Archives/edgar/data/931336/000093133619000007/df-20181231x10k.htm
21. U.S. Department of Agriculture, Economic Research Service, Fluid milk consumption continues downward trend, proving difficult to reverse (plant-based alternatives explain small portion of decline), Amber Waves, June 2022. https://www.ers.usda.gov/amber-waves/2022/june/fluid-milk-consumption-continues-downward-trend-proving-difficult-to-reverse
22. U.S. Food and Drug Administration, Investigation of Avian Influenza (H5N1) Virus in Dairy Cattle (99% Grade A participation; pasteurization effectiveness; 297 retail samples tested), 2024. https://www.fda.gov/food/alerts-advisories-safety-information/investigation-avian-influenza-h5n1-virus-dairy-cattle
23. U.S. Department of Justice, Case Document: Competitive Impact Statement — U.S. and Plaintiff States v. Dairy Farmers of America, Inc. and Dean Foods Company, 2020. https://www.justice.gov/atr/case-document/file/1279541/dl
24. U.S. Bureau of Labor Statistics, Survey of Occupational Injuries and Illnesses, Table 1: Industry rates (fluid milk manufacturing injury rate 4.7 per 100 FTW, 2024). https://www.bls.gov/web/osh/table-1-industry-rates-national.htm