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why freeze dried?

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Freeze-drying, also known as lyophilization, is a food preservation technique that removes water from food to extend its shelf life and make it easier to store, transport, and handle. Freeze-drying has many benefits, including: 

 

 

  • Retains nutrients

  • Freeze-dried foods retain up to 97% of their original nutrients, which is much higher than other drying methods. 

  • Preserves foods that other methods can't

  • Freeze-drying can preserve foods that other methods can't, like most dairy and egg products. 

  • Reduces weight

  • Freeze-drying removes about 98% of a food's water content, which can reduce its weight by up to 90%. This is especially useful for people who need to carry their own food for long periods of time. 

  • Doesn't use heat or preservatives

  • Freeze-drying doesn't use heat or added preservatives, so the nutritional value of the food remains nearly unchanged. 

  • Re-hydrates well

  • Freeze-dried food is more porous than oven-dried food, so it rehydrates better and faster. 

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NASA developed freeze-drying to send food on long-duration spaceflights, where reducing the weight of water and oxygen helps prevent food from deteriorating.

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