Can you eat freeze-dried food without water?

In this brief guide, we will address the query, “Can you eat freeze-dried food without water?” We will also discuss how freeze-dried food is made and how long it lasts.

Can you eat freeze-dried food without water?

Yes, you can eat freeze-dried foods without water. The crispy and dry texture is appreciated by many people and speaking from the food safety aspect, there is no problem in consuming freeze-dried food without adding water.

However, as it is very dry food, it will require water regardless of whether it is before or after consumption. Consuming a whole freeze-dried meal without water will make you thirsty in the next few hours, as these foods absorb water from your body.

The consumption of lyophilized foods without water should be done considering your body’s hydration, it will be necessary to drink water after consuming them, otherwise, you may experience the typical symptoms of dehydration such as weakness and dizziness as well as terrible constipation.

How is freeze-dried food made?

Freeze-dried food uses a concentration technique that includes freezing followed by drying. Freeze-drying removes water and other components from the sample at a specific atmospheric pressure that allows ice crystals in the food to pass directly into steam, bypassing the liquid phase.

This process is called sublimation and can be used in the pharmaceutical and chemical industries and on a small scale in homes that have freeze dryers. The technique emerged during the Second World War for the transport of medical supplies and is still widely used today in biological inputs.

In addition to increasing food preservation and making them light for transport, freeze drying proved to be the conservation technique that best preserves nutrients, flavors, and texture of food after rehydration.

The food is lyophilized using the correct equipment with the proper regulation for each food accompanied by careful preparation. The samples must be cooled to at least the temperature of the melting point for that sample, this will facilitate sublimation.

Then the sample is frozen in flash freezing, creating smaller ice crystals that will not damage the integrity of the fibers of the food. 90% of the water. The second drying uses heat to remove the water molecules most attached to the food, leaving the sample moisture around 2%.

How long does freeze-dried food last?

Freeze-dried foods do not need refrigeration, are great as an emergency food source without needing to use preservatives and are very compact with high nutritional power provided.

Freeze-dried foods have great durability, with a shelf life of up to 25 years! Lyophilization so far is the longest-lasting form of conservation, surpassing dehydrated, canned, and frozen foods that can last up to 4, 3, and 2 years respectively.

What are some quick recipes with freeze-dried foods?

Freeze-Dried Vegetable and Noodle Soup

Nutritious and perfect for a chilly night, a freeze-dried vegetable soup can be dinner ready in 10 minutes.


  • 2 cups dried pasta
  • 1 cup freeze-dried vegetables
  • 1 teaspoon brasil
  • 1 teaspoon parsley
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • Salt and pepper to taste
  • 8 cups of water


  • Place the freeze-dried vegetables in a dry blender and blend them into flakes. Reserve.
  • Add the water, garlic powder, onion powder, parsley, basil, salt, and pepper to a pot and bring to a boil.
  • After boiling the broth, add the pasta, and when it is cooked add the vegetable flakes.
  • Let simmer for 5 minutes, and serve hot.

Freeze-Dried Blueberry Muffins

Practical and delicious, they are a great snack to take in your lunch box.


  • 2 cups all-purpose flour
  • ½ cup butter
  • 1 ½ teaspoon baking powder
  • ½ cup freeze-dried blueberries
  • ½ teaspoon salt
  • ¾ cup sugar
  • 2 eggs
  • ¾ cup milk
  • 1 teaspoon vanilla extract


  • Preheat the oven to 375ºF. Meanwhile, mix the flour, baking powder, salt, and sugar and set them aside.
  • Beat the eggs and mix in your wet ingredients (butter, milk, and vanilla) until smooth.
  • Gently combine the wet and dry ingredients and add the freeze-dried blueberries into your batter.
  • Grease your muffin tins and fill each cup 3/4 full. Bake for 25 to 30 minutes until the dough is baked and golden.


In this brief guide, we have addressed the query, “Can you eat freeze-dried food without water?” We have also discussed how freeze-dried food is made and how long it lasts.

Hope you found this blog useful. If you have any questions, please let us know.