The first step is to clean the strawberries: Wash the strawberries under running cold water. I like to add baking soda first and rinse them many times. Adding baking soda and even white vinegar will help remove the pesticide from the fruit. When washing strawberries, I find it helpful to use a salad spinner. The strainer part can be pulled up, making the washing process easier.
Next, hull the strawberries. Pull back the leaves of the fruits to show the stem, and then using a pairing knife cut around it to remove the green leafy top.
Dice the strawberries and reserve about 1/2 cup to use as garnish.
Place the strawberries in a blender along with 3 cups of water. Blend for 1-2 minutes at high speed, or until the strawberries are pureed.
Strain the strawberry mixture. Straining the strawberry mixture through a fine-mesh sieve to remove any seeds or pulp will result in a smooth and clear agua fresca.
Then, combine the strawberry mixture with the evaporated milk, and condensed milk. Mix until well incorporated.
Add the reserved strawberries and get your glasses ready to enjoy a delicious creamy drink. Serve with lots of ice.
Finally, for a burst of color and flavor, add some fresh mint to the drink before serving.