Our History Concentrates, Inc. Concentrates, Inc. Organic agricultural specialists since 1938 Main menu Skip to primary content Skip to secondary content HomeOur HistoryOur..., Heather Havens, joined Concentrates. She expanded and highlighted our organic soil amendments, feed products, and services. She has a BS in Agriculture from OSU, is an Organic... Agriculture educator and consultant, and she was involved in the creation of the OSU Organic Master Gardener Program. Our Store Manager Dan Young is a horticultural expert, with a long...