These types of foods also make for ideal survival foods as they can be stored for many days, even years without getting impacted. The freeze-dried foods retain their natural color, flavor and nutritional value even after being stored for years. When the food is rehydrated, it feels fresh and nutritious.
Dehydrated foods on the other hand involve drying/ heating foods to a temperature that might possibly alter the taste and nutritional value. Dehydrated foods may feel hard and crunchy while frozen foods feel really soft and mushy in the mouth.
Freeze dried foods are lighter than dehydrated foods:
The process of lyophilisation takes away about 98% of moisture from food hence freeze dried foods feel a lot lighter. This type of food is ideal for military people and astronauts who are allowed to carry a limited weight with them when heading for places with tough situations.
Freeze-dried foods are preferred over dehydrated foods as they are much lighter in terms of food weight and package size.
Freeze-dried foods are quick and easy to prepare:
The dehydrated foods need to be cooked when preparing a meal, and they might need seasoning to taste well. So, this is a time taking process not suitable for those seeking survival or emergency foods. Freeze-dried foods on the other hand can be prepared easily and quickly by simply adding hot or cold water to it. Your food will be ready to serve within minutes.
Dehydrated foods come cheaper than freeze-dried ones. When you are looking for survival or emergency foods that will last longer and retain its nutritional value and taste, the high cost of freeze-dried foods completely justifies itself!