I rinse mine first.

Then pat dry.... sort of let them sit for a bit on the sheet on the table to dry some more.

The more dry they are, the less ice you will have on them.

Put sheet in freezer -- make sure berries are on wax paper= easier to take them off to bag after they freeze.

Once frozen, bag them up.

If cookie sheet won't fit in your freezer, try using plates or long tupperware lids. (My cookie sheets wouldn't fit in my freezer due to lack of room -- I used plastic plates and bigger tupperware lids, both lined with wax paper, to freeze the strawberries)

have fun!