Louis Trauth Dairy
A former Kentucky dairy company known for milk, ice cream, cultured dairy products, and regional distribution in the Greater Cincinnati area.
Last updated August 25, 2026
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Overview
Louis Trauth Dairy was a regional dairy company founded in 1920 by Louis Trauth in Newport, Kentucky. It developed from a small 600-square-foot plant into a substantial dairy operation serving the Greater Cincinnati and Ohio River Valley markets. During its early years, the business competed with dozens of other dairies in the Cincinnati area, but it expanded its manufacturing and distribution capabilities as the regional dairy market consolidated and consumer demand grew. The company produced and distributed a range of dairy products, including milk, ice cream, sour cream, cottage cheese, dips, and other refrigerated offerings. Its best-known consumer proposition was associated with Trauth's ice cream, while its dairy business also competed in packaged milk and cultured products. The company emphasized regional production and distribution rather than operating as a nationwide consumer brand. Louis Trauth Dairy invested substantially in its Newport facilities. The company’s plant ultimately occupied an area equivalent to five city blocks, and it completed three multimillion-dollar expansions after 1985. These projects were intended to improve production efficiency and distribution capacity. The company also adopted several packaging and processing innovations for its market. It was among the first dairies in the area to use vacuum pasteurization for milk, and it was reported to be the first Cincinnati-area dairy to introduce tamper-evident packaging for sour cream, cottage cheese, and dips. It also held a specialized position as the sole manufacturer of Fat Free plus a/B milk, a product associated with the regional business. In 1997, Louis Trauth Dairy was sold to Suiza Food Corp. The purchase price was not publicly disclosed in the cited reference material. After Suiza Food merged with Dean Foods in 2001, the dairy became part of the Dean Foods brand structure. The business continued operating for several more years, but the dairy closed in 2011 after 91 years in operation. As a result, Louis Trauth Dairy is now a defunct regional dairy company rather than an active independent manufacturer. Its historical significance rests on its long presence in Northern Kentucky and Greater Cincinnati, its local distribution network, and its adoption of packaging and processing practices that distinguished it within the regional dairy industry.
History
Louis Trauth Dairy began in 1920 when Louis Trauth established a dairy operation in Newport, Kentucky. The company started in a 600-square-foot facility and entered a highly competitive Greater Cincinnati market that included 54 other dairies. Its subsequent growth reflected the importance of local milk processing and short-distance refrigerated distribution in the early and mid-twentieth century. Over time, Trauth Dairy expanded beyond its initial scale and developed a modern facility covering five city blocks. The business remained focused on dairy manufacturing and regional distribution, supplying products such as milk, ice cream, sour cream, cottage cheese, and dips. Its regional identity was reinforced by its concentration on the Cincinnati metropolitan area and nearby Ohio River Valley communities rather than a national retail footprint. The company pursued operational modernization during its later independent period. It was one of the first dairies in the area to use vacuum pasteurization for milk. It also introduced tamper-evident packaging for sour cream, cottage cheese, and dips, reportedly becoming the first Cincinnati-area dairy to adopt that packaging approach for those products. In addition, it was the sole manufacturer of Fat Free plus a/B milk, giving the company a specialized position in its local market. After 1985, the company completed three multimillion-dollar expansions intended to improve production efficiency and distribution. These investments indicate that the business continued to operate as a significant regional dairy even as the industry became more concentrated. In 1997, Louis Trauth Dairy was sold to Suiza Food Corp. The sale price was not disclosed in the available reference material. Suiza Food later merged with Dean Foods in 2001, and Trauth Dairy consequently became associated with Dean Foods. The dairy closed in 2011 after 91 years in business. The closure ended a long-running Newport manufacturing operation and marked the disappearance of an independent regional dairy business that had survived substantial changes in dairy processing, packaging, distribution, and corporate ownership.
- 2011
Dairy closes
[1]The company ended operations after 91 years in business.
- 2001
Transferred into the Dean Foods structure
[1]The merger of Suiza Food Corp and Dean Foods brought Louis Trauth Dairy under the Dean Foods brand structure.
- 1997
Acquired by Suiza Food Corp
[1]Louis Trauth Dairy was sold to Suiza Food Corp in an acquisition with an undisclosed price.
- 1985
Expansion program begins
[1]The company entered a period in which it completed three multimillion-dollar expansions to improve production and distribution efficiency.
- 1920
Louis Trauth Dairy founded
[1]Louis Trauth established the dairy in Newport, Kentucky, beginning operations in a 600-square-foot plant.
Products and positioning
A regional dairy producer centered on fresh refrigerated products, local manufacturing, and distribution across the Greater Cincinnati and Ohio River Valley markets.
Dairy beverage
Milk
Milk was a core part of Louis Trauth Dairy’s regional business. The company was noted for using vacuum pasteurization, an early processing technique in the local dairy market. It also held a specialized position as the sole manufacturer of Fat Free plus a/B milk.
Frozen dairy dessert
Trauth's Homemade Ice Cream
Trauth’s Homemade Ice Cream was the company’s most recognizable named offering in the available dossier material. It represented the brand’s consumer-facing frozen dairy business alongside its packaged milk and cultured dairy products.
Cultured and refrigerated dairy products
Sour cream, cottage cheese, and dips
Louis Trauth Dairy manufactured several refrigerated dairy products, including sour cream, cottage cheese, and dips. These products were among the first in the Cincinnati area to receive tamper-evident packaging from the company.
Brand decisions
2011
Closure of the Newport dairyOtherBackground
Louis Trauth Dairy had operated for 91 years but ultimately ceased manufacturing operations.
Action taken
The dairy closed in 2011.
Aftermath
The closure ended the company’s operations and its long-running regional dairy manufacturing presence.
1997
Sale to Suiza Food CorpM&ABackground
After decades as a regional dairy business, Louis Trauth Dairy entered larger-scale corporate ownership through a sale to Suiza Food Corp.
Action taken
Suiza Food Corp acquired the company; the transaction value was not disclosed in the cited source.
Aftermath
The company later became part of the Dean Foods structure when Suiza Food merged with Dean Foods in 2001.
Sources1 sources
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