This building predates the Civil War. Milk for the plantation was brought here to be cooled, churned, and stored. The thick plaster on the walls helped insulate blocks of ice cut from nearby lakes and rivers in winter and packed with straw which kept the dairy products cool through the warmer months. A nearby well provided water for the Milk House. Looking closely at the walls, one can see the horse hair mixed with the plaster to assist in bonding.