dip them first in cold salt water to get any bugs out.............................then in a fresh pot of water boil it............just blanch it for 1 to 2 minutes each and then have a container of iced water ready and drop them in. I cut them into florets and bag & freeze. I use a vac pac machine but heavy duty freezer bags are okay, just get the air out and mark date & freeze. I just used the last of it.......can't wait until garden is ready to pick.