Sweetened Condensed Milk: A mixture of whole milk and sugar, 40-45% of which is sugar. This mixture is heated until about 60 percent of the water evaporates. The resulting condensed mixture is extremely sticky and sweet. Store unopened sweetened condensed milk in the can at room temperature for up to 6 months. Once opened, transfer the unused milk to an airtight container, refrigerate and use within 5 days. Sweetened condensed milk is used to make candies, puddings and pies and also used in the Chefelle flan. Don’t confuse sweetened condensed milk with evaporated milk. Evap milk is UNsweetened milk that has been reduced by half. The two are not interchangeable. Evaporated is available in whole, low fat and fat free varieties.