The Sealtest brand name was established by National Dairies in 1934, when it changed the name of its ice cream from Tasty to Sealtest. As the popularity of ice cream grew in the United States, Sealtest sold over 267,000 gallons during the first year its ice cream was mass produced. Sealtest Ice Cream was originally sold at the Sealtest Ice Cream Parlor and the Sealtest Ice Cream Wagon at Walt Disney World in Orlando, Florida, which allowed for it to gain fast popularity. In the 1930s and 1940s under parent companies National Dairies and Kraft Foods, Sealest was mainly sold in drug stores, soda fountain shops, independent grocery stores and restaurants.  As grocery stores expanded into frozen food products, production of ice cream continued to grow, and by the early 1950s, Sealtest established many ice cream plants throughout the United States, including plants and distribution centers in Buffalo, Niagara Falls, Hamburg and Lockport.  By the 1960s and 1970s, production of ice cream had grown to 4.5 million gallons per year.  In 1976, Breyers Ice Cream was introduced to the National Dairies and Kraft Foods product line. At this time, Sealtest began producing Sealtest Frozen Yogurt, sales of which skyrocketed due to diet-conscious consumers.  In the 1980s and early 1990s there were several internal changes at Kraft Foods, which led to the merger and acquisition of smaller product lines under the Sealtest Division of the Kraft Company. In 1993 Unilever, the largest ice cream marketer in the world, acquired the ice cream operations of Kraft General Foods and combined it with the Good Humor frozen novelties company to form Good Humor-Breyers. Sealtest ice cream is no longer made.

Prior to the late 1970s, asbestos-containing materials were utilized in construction and maintenance of the Sealtest Plants in New York State. Inhaling dust and particles from the application and removal of asbestos-containing materials placed workers at risk for developing serious health problems, such as mesothelioma and lung cancer. Even those who were not in direct contact with asbestos materials remain at risk for the development of asbestos-related diseases. If you or a loved one were once employed at a Sealtest facility and have been diagnosed with mesothelioma, lung cancer or another asbestos-related disease, we urge you to contact us regarding your legal rights.