Taking some care in preparing foods for the cold can make the difference between dry unappetizing dishes and those that are as good as freshly made. Cold air slows, but does not stop changes and deterioration in food. When wrapping foods for freezing, always try to get as much air out of the package as possible and wrap it well so that moisture can't get in. Aluminum foil is a great freezer wrap as are heavy plastic freezer bags. Freezing can be a wonderful time saver.
Ice cube trays work well for egg whites.
Foil containers are great for freezing foods you will want to re-heat in an oven, as are freezer safe glass baking dishes,just cover the tops well. Labels are also necessary for dating the food you freeze. While freezers will keep food for long periods, they won't keep forever. Foods that freeze faster will keep better. Larger crystals mean poorer texture to your thawed foods.