Slice your strawberries into quarters and add them to a blender with the agar-agar powder first. I blend them separately because this prevents clumping—the powder coats each berry piece before liquid dilutes it, creating better distribution throughout your homemade strawberry popsicles crowd batch.
Pour the cold water, lemon juice, and lemon zest into the blender, then pulse on low speed for 15 seconds. Stop before it becomes completely smooth—you want visible fruit pieces suspended throughout, not a puree. This texture difference is what makes people actually taste strawberry instead of sugar water.
Add the salt, corn syrup, vanilla bean paste, and coconut milk to your blended mixture. Stir gently by hand with a wooden spoon for exactly one minute. The salt enhances strawberry flavor by waking up your taste buds, and I learned this trick from a pastry chef who swears by it.
Let the mixture sit at room temperature for 5 minutes while agar-agar begins thickening. You'll notice it becoming slightly thicker—this is working as intended. I know it feels counterintuitive not to rush this step, but those five minutes prevent separation once frozen.
Pour the mixture into your popsicle molds carefully, leaving 1/4 inch at the top for expansion. Insert sticks halfway through freezing (about 2 hours), then return to the freezer for another 3 hours until completely solid. Why halfway? Because starting sticks in liquid lets them slide during freezing, but starting them in soft ice holds them centered perfectly.
Run warm water over the outside of molds for 10 seconds before removing homemade strawberry popsicles crowd from their containers. The exterior warming contracts the mold slightly, releasing popsicles easily without cracking or melting. This single step prevents the frustration of broken popsicles mid-summer.