If the bottle is just for comfort it's always the best with water. Juice and other things contains sugar which is bad for the teeth that are there or coming (some children have cavities when the first teeth comes up) and if it's orange or citrus juice it acidic for the teeth. Sugar also gives the child more energy when they supposed to sleep.
I would not freeze it in the bottle. Instead, portion it out in an ice cube tray. When frozen, store the cubes in a plastic bag.
Then the bottle contains a dilute juice . . . a mixture of juice and water.
juice is more natural, that is always the better way to go
pack of juice
If you drink out of a orange juice bottle you can spread icky germs to other people that drink out of that bottle.
the bottle will float around it wont be still , the oil and juice in the bottle will mixed but they wont be the perfect mixture
2000 ml
No reason why not. It will disperse better than granulated sugar too.
To keep more juice in it.
0.25
Yes, you can substitute reconstituted lemon juice for fresh lemon juice.
An empty bottle has less mass than a full bottle. This means that the empty bottle has less force to overcome when lifted which corresponds to less work to lift it.