Heat up a cup of water and stir in sugar until dissolved.Note: sugar can be adjusted depending on the sweetness of berries. Start with less sugar and a little more can be added.
Wash and chop strawberries in halves or quarters so it fits in the blender better.
Add water, fresh squeezed lime juice, and simple syrup to the blender and blend everything until completely blended and smooth. Note: Depending on the size of the blender, you may need to work in 2 batches.
Strain Agua Fresca through a fine strainer to get rid of pulp and seeds.
Refrigerate for about 2 hours to get it cold before servings.