in the original story of Amrita there was a sea of real milk involved.
> plant saps called "milk"
like coconut milk or oat milk of course. That doesn't mean it's not juice and that the name stayed for historical reasons. And because they actually look like milk. Almond juice doesn't look like milk, unless processed. That's why I mentioned almond milk in the first place.
cf: milk of magnesium, milk of ambrosia, various plant saps called "milk", etc.