Use a plastic container. Lay down course salt on bottom, place your frozen anchovy on top of the salt. Be careful when you pull them apart to reduce damaging them. I then layer more salt on top of the anchovy then lay down more anchovy on top of that salt and so on. They then go back in the freezer. I pull them out of the freezer the night before I fish (usually 24 hours is enough time to cure). By this point they are cured up and are quite dehydrated and solid. They retain their silver color and shape. I don't do the brining/bluing/dehydrated milk thing. Too much work and I personally don't believe it’s necessary although I'm sure lots of people will have other views. I learned this process from fisherman in the south of Spain. It works for them and I've found it works for me. Also, I keep bait for months sometimes. I waste less bait. I bet I cut my annual cost of bait in half since I started doing this.