Hi, I am going to freeze a batch of live clams that I had sitting in my refrigerator before they go bad. When I steam them after I take them out of the freezer (they will be frozen probably about a week or two) how will I know if the clams are good or not? For example, if I steamed them when they were alive, the clams would open up and the ones that didn't are the ones you throw out. Is it the same for frozen clams? Thanks!