I have always transferred my glass tile from the plastic factory bags used for shipment and into glass jars or plastic tubs. I do that for several reasons:
Rigid containers like recycled jars and plastic yogurt containers make it easier to rinse out the glass dust and slivers formed by cutting. Torn plastic bags drip water and don’t dry easily.
Glass jars and open-top tubs also make it easier to see the true color of the tiles, which is difficult when viewed through scratched and dirty plastic.