Start by thoroughly washing the fresh limes under cool running water. Cut each lime into about 8 pieces.

In a blender, combine the lime pieces with cold water and sweetened condensed milk. Blend on high speed for 1-2 minutes until creamy.

Pour the blended mixture through a mesh strainer into a large pitcher to catch any pulp. Press down on the solids.

Fill glasses with ice and pour the limeade over it. Serve immediately for the best taste.