Combine hulled strawberries, cold water, and granulated sugar in your blender. Blend until completely smooth with no visible seeds—I pulse mine 12 times, then blend for 20 seconds straight. This breakdown matters because you want maximum strawberry flavor releasing into the liquid base.
Pour the mixture through a fine-mesh strainer into a medium bowl, pressing gently with a spatula to extract every drop. You'll lose a tiny bit of fruit pulp but gain that jewel-tone clarity that makes elegant homemade strawberry popsicles look professionally made. I admit I used to skip this step until Marco pointed out the difference in appearance.
Whisk in lemon juice, lemon zest, sea salt, honey, orange juice, and finely chopped fresh mint until the sea salt dissolves completely. Taste here—you want brightness that makes your mouth wake up, because frozen desserts taste less flavorful when cold. If it tastes too tart, add one more tablespoon honey.
Heat the mixture in a small saucepan over medium heat until it reaches 160°F on an instant-read thermometer—approximately 3 to 4 minutes. Sprinkle in the agar-agar powder while whisking constantly to prevent clumps from forming. The agar-agar needs heat activation to set properly, so don't skip this step or your beautiful summer frozen treat will remain liquid.
Remove from heat and stir in the coconut milk until the mixture turns uniformly pale. Let the mixture cool to room temperature for exactly 15 minutes—this timing prevents condensation inside your popsicle molds. I've learned this the hard way after ruining batches with premature freezing.
Pour the cooled mixture into popsicle molds, filling each one three-quarters full. Insert sticks, cover with the provided lids, and place in the freezer for at least 6 hours. The agar-agar will set faster than gelatin, which is why elegant homemade strawberry popsicles freeze so reliably.
Run warm water over the outside of each mold for 10 seconds, then gently wiggle the stick to release your stunning popsicles onto parchment paper. Store them in an airtight container with parchment between each one so they don't stick together.