Susan Eksted says that most people are making a very big mistake. She also says that leaving the food in the fridge during the night so as to slowly defrost is very wrong!
Dr. Susan claims that the best way to defrost the food is to place it in cold water, and not to acknowledge all the myths about food. This way you will preserve the taste of the food, because the water conducts heat better than air. Also this is the fastest way to defrost