Founded in 1973 by Phillip J. Sass, Wisconsin Spice, Inc. has grown from humble beginnings, and today is regarded as a global power in the mustard industry. Sass started Wisconsin Spice, Inc., amidst a global mustard shortage, in an abandoned, 19th century feed mill. From humble beginnings, Sass constructed a 130,000 sq. ft. manufacturing facility which produces dry-milled mustards and prepared mustards, serving multiple distribution channels – Industrial Ingredients, Foodservice, and Retail.

As a former Quality Manager, Sass saw an opportunity to mill mustard seed into ground mustard for the sausage industry. In early years of the company’s existence Wisconsin Spice specialized in milling ground mustard and mustard flour. In 1975, Sass added the capability to mill prepared mustard, competing with world renowned brands.

In 1985, Sass moved the company from its antiquated building to its existing, state-of-the-art facility. Since then, continuous investment in capacity and capabilities have been made, making Wisconsin Spice, Inc. one of few manufacturers who possess the capability to mill both dry and prepared mustard solutions under the same roof.

In 2018, under second-generation leadership, Wisconsin Spice expanded operations to a multi-site organization with its opening of the Phillip J. Sass Technical Center, a facility dedicated to research and development, and corporate activities.

Today, Wisconsin Spice, Inc. is known as the largest miller of mustard seed in processing over 40,000,000 lbs. of mustard seed annually, and supplying mustard to over 30 countries worldwide. Wisconsin Spice, Inc. continues to invest in growth and works tirelessly in adding value to customers’ businesses.


Wisconsin Spice currently exports to more than 30 countries