Can you freeze milkshakes?
Also question is, can you put a milkshake in the freezer?
If it's ice-cream based milkshake, like the stuff you get from McDonald's, neither will keep it right. In the fridge, it'll melt and turn to sugary milk. In the freezer it'll turn to ice-cream. Your best bet is to go with the freezer, then accept it'll need some time in the fridge before it'll go through a strawer.
People also ask, can you drink a milkshake the next day?
Five hours if UNrefrigerated and if the day is HOT (or you've left it in a closed car), is stretching quality control a little. I would be happier if you could keep it as cold as possible for those five hours. Insulated container, or if the day is cool, and it's not in the sun, you should be fine.
The best thing to do is whip up a quick milkshake. Spoon the melted mess into the blender, add a few handfuls of ice cube and a squeeze of U-Bet syrup if you have it and whiz away. This will reincorporate some air and be delicious. And as far as punishments for absentmindedness go, punishment milkshake is pretty sweet.