They do indeed. Regular tape (e.g. Scotch tape, masking tape) won’t do, either - the adhesive doesn’t stick in the freezer. We’ve proven this (well, with the masking tape anyway, I don’t know that we’ve tried with Scotch tape).
After the goodies are frozen I top off my containers with water.
The only thing that gets burned is the ice!
CMC fnord!
Funny you posted this - last week I found 2 containers of pasta sauce in the freezer that I froze so long ago, I don’t even remember how long it was. Probably a year. They were each in two-pound deli take-out containers like you would get deli coleslaw in. Each thawed out in the microwave in just a few minutes. They tasted just as fresh as when I froze them. I was very surprised that not only did they not taste like freezer, but they tasted great. I usually use either those deli containers or the heavy ziplock freezer bags.