My experience is Sleeve it in a plastic bag. Use a clip for the mouth that is in contact with air.

Put it under a cool cupboard.

Avoid humidity.

This is usually enough

If you're not sure, do it again outside.

The advantage of this is that

the glutinous rice flour won't turn into hard lumps

and it won't turn sour.

If it gets sour, you can't use it. Very sad.