4. Transfer to Freezer Bags
Once frozen, transfer to zip-top freezer bags with the air pressed out before sealing. Even freezer bags allow some transfer of gases, which can lead to freezer burn, so for storage longer than two months, it's best to double-bag. Make sure to label the bags with the packing date.
Bonus for following all these steps: Small, blanched frozen veggies thaw in just a few moments under warm running water directly in their bags.