Discussion Can I prepare plastic bottles with sn in them for later use that day or next day?

[HopefulSleep]

I have the idea to put 50ml water in empty plastic water bottles and then 25g sn with a spoon, then close the bottles and shake them to mix it so that I have them ready for later use so that I don't have to bring a spoon and glasses too my room suspiciously and that I can drag them to other rooms easily.