Production Process For over 90 years Lambert’s process for making spawn has been rooted in a tradition of quality. We start with selecting the finest grains and nutritional substrates from suppliers who are subjected to rigorous quality testing to ensure that all our specifications are met. Using exceptional cultures is fundamental when manufacturing premium products. Lambert’s modern Culture Center houses elite stocks frozen under liquid nitrogen that are the foundation used to produce our spawn. Quality tests are performed at every cultural phase that includes prescreening, analyzing, morphing, yields, and characterization. Before being used in production, all cultures must first be approved by one of Lambert’s skilled mycologists. After sterilization and inoculation, Lambert substrates are aseptically filled and sealed into custom filter bags and then placed in HEPA-filtered rooms designed to enhance stable growth. Regular monitoring and environmental adjusting by our staff keeps the temperature at the optimal level needed for each strains growth. Once colonized, all spawn must pass our rigid Quality Assurance protocols before being transferred into inventory. Lambert’s production process leaves nothing to chance to make sure our products ones you can count on. NEED HELP? Please contact your sales representative. ADDRESS: 1507 Valley Road Coatesville, PA 19320 610-384-5031 © 2021 Copyright Lambert Spawn. All Rights Reserved.

Lambert's History Back in 1903, Louis F Lambert created the first pure culture spawn which was produced in St. Paul, Minnesota. His spawn was sold to the farmers who grew mushrooms in caves above the Missouri river, and was a revolutionary development for growers. They could now reliably produce a single strain of Mushrooms instead of the mixture they got when using imported English versions. By 1907 Lambert’s American Spawn Company was marketing at least seven different pure Agaricus strains to growers around the country. Around 1915 Lambert moved his operation to the heart of the mushroom industry in Coatesville, Pennsylvania. There, he bought a property where the company still exist and thrives today. In 1925 Lambert selected and propagated a smooth white variation from a bed of cream mushrooms and named it Snow White. Years later, the Dutch used Snow White cultivator to develop the U1 and U3 strains grown today. In World War II, Lambert and his nephew were original producers of penicillin cultures for Sharp and Dohme Laboratories antibiotics. The Lambert Spawn Company’s rich history has led the way in the mushroom industry for its first century in America. Our technical achievement, our commitment to mushroom growers, and our dedication to the industry as a whole will continue to make Lambert the leader into the next century. NEED HELP? Please contact your sales representative. ADDRESS: 1507 Valley Road Coatesville, PA 19320 610-384-5031 © 2021 Copyright Lambert Spawn. All Rights Reserved.