If wewe take a Vitamin water (so far it has worked with Dragon fruit, blueberry acacia pom and grape...put them in the freezer door for anywhere from to 2 - 3.5 hours. And then check every once in a while to make sure they aren't frozen at all but they feel really cold without any crystal formation at all! Be careful with the acacia and Bluberry casue it cools and freezes faser...anyway, take it out of the freezer while it is still liquid but very cold usually takes 3 hours if wewe leave it just in the freezer door and don't check it zaidi than once in between. Anyway, when wewe take it out wrap...