The molds have a vent at the bottom… a small channel the lets the water escape below the main mold, which is then easily broken away.
If you use a cooler, you’ll need to carefully time the freezing so the bottom doesn’t freeze.
The molds have a vent at the bottom… a small channel the lets the water escape below the main mold, which is then easily broken away.
If you use a cooler, you’ll need to carefully time the freezing so the bottom doesn’t freeze.