Originally Posted by taxlady
I think frozen green beans are already blanched, before freezing. I don't know that for a fact though. I would skip blanching frozen beans.
One summer as a teenager I worked in a misnamed cannery. They prepared veggies right from the fields. Some were prepared for the can and others for freezing. They were all blanched in big vats prior to their next step. Some went into the cans immediately and the cans were then placed in a huge pressure cooker for the finished cooked product.
The ones for the freezer, were first blanched and then right into sealed bags for the freezer. I haven't eaten a can of beans since childhood. Only frozen.