Freeze-dried foods are items that have had their moisture removed through a special process called freeze-drying. This method involves freezing the food and then slowly heating it in a vacuum, which causes the ice to turn directly into vapor. As a result, the food retains most of its original flavor, nutrients, and texture while becoming lightweight and shelf-stable. These foods are popular for camping, emergency preparedness, and long-term storage because they can last for years without refrigeration. Common freeze-dried items include fruits, vegetables, and even complete meals, making them convenient options for outdoor enthusiasts and those looking to stock up on non-perishable foods.