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How to Freeze Dry Food

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6 min read
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Best Freeze Dryers to Preserve Your Food in October 2025

1 COSORI Food Dehydrator, Bigger Than 7 Trays With Large 6.5" Drying Space, 600W Power Saves More Time Than 480W, 165°F Dehydrated Dryer for Jerky, Dog Treats, Herbs, Meat, Fruit, and Yogurt, Silver

COSORI Food Dehydrator, Bigger Than 7 Trays With Large 6.5" Drying Space, 600W Power Saves More Time Than 480W, 165°F Dehydrated Dryer for Jerky, Dog Treats, Herbs, Meat, Fruit, and Yogurt, Silver

  • 27% LARGER CAPACITY: DRY MORE FOOD AT ONCE WITH 6.5 FT² SPACE!
  • POWERFUL & EFFICIENT: ENJOY FASTER DRYING WITH A 600 W MOTOR!
  • SUPER QUIET OPERATION: DEHYDRATE FOOD OVERNIGHT WITH NOISE UNDER 48 DB!
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$143.99 $159.99
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COSORI Food Dehydrator, Bigger Than 7 Trays With Large 6.5" Drying Space, 600W Power Saves More Time Than 480W, 165°F Dehydrated Dryer for Jerky, Dog Treats, Herbs, Meat, Fruit, and Yogurt, Silver
2 COSORI Food Dehydrator for Jerky, 176°F Temperature Control, 5 Stainless Steel Trays Dryer Machine, 4 Presets, 48H Timer, for Dog Treats, Meat, Fruit, Veggies, Snacks, Recipe Book Included

COSORI Food Dehydrator for Jerky, 176°F Temperature Control, 5 Stainless Steel Trays Dryer Machine, 4 Presets, 48H Timer, for Dog Treats, Meat, Fruit, Veggies, Snacks, Recipe Book Included

  • MAX TEMP 176°F FOR SAFE JERKY: ENSURE DELICIOUS, SAFE BEEF JERKY AT HOME.

  • CUSTOM PRESETS FOR EASY USE: ENJOY PRESETS FOR JERKY, FRUITS, VEGGIES, YOGURT.

  • COMPACT DESIGN FITS ANYWHERE: SPACE-SAVING SIZE HOLDS UP TO 3.1 LBS OF FOOD.

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$107.99 $119.99
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COSORI Food Dehydrator for Jerky, 176°F Temperature Control, 5 Stainless Steel Trays Dryer Machine, 4 Presets, 48H Timer, for Dog Treats, Meat, Fruit, Veggies, Snacks, Recipe Book Included
3 Food Dehydrator Machine-Dehydrators for Food and Jerky, 300W 158 ℉ Temperature Control & 24H Timer Food Dryer with 5 BPA-Free Trays Fruit Dryer for Hearb, Fruit, Dog Treats (Black)

Food Dehydrator Machine-Dehydrators for Food and Jerky, 300W 158 ℉ Temperature Control & 24H Timer Food Dryer with 5 BPA-Free Trays Fruit Dryer for Hearb, Fruit, Dog Treats (Black)

  • EFFICIENT 360° AIRFLOW: RETAIN NUTRIENTS WHILE DEHYDRATING FOOD FAST.

  • ADJUSTABLE 5-TRAY CAPACITY: PERFECT FOR VARIOUS FOODS, FROM HERBS TO JERKY.

  • PRECISE TIMER & TEMP CONTROL: ACHIEVE PERFECT RESULTS EVERY TIME SAFELY.

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$55.99 $59.89
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Food Dehydrator Machine-Dehydrators for Food and Jerky, 300W 158 ℉ Temperature Control & 24H Timer Food Dryer with 5 BPA-Free Trays Fruit Dryer for Hearb, Fruit, Dog Treats (Black)
4 Magic Mill Food Dehydrator Machine | 5 Stackable Stainless Steel Trays Jerky Dryer with Digital Adjustable Timer & Temperature Control - Electric Food Preserver for Fruits, Veggies, Meats & Dog Treats

Magic Mill Food Dehydrator Machine | 5 Stackable Stainless Steel Trays Jerky Dryer with Digital Adjustable Timer & Temperature Control - Electric Food Preserver for Fruits, Veggies, Meats & Dog Treats

  • RETAIN 97% OF NUTRIENTS WHILE EFFICIENTLY DRYING VARIOUS FOODS!
  • ADJUST 5 TRAYS FOR MULTI-LAYER DRYING OF FRUITS, VEGGIES, AND MORE!
  • USER-FRIENDLY CONTROLS ALLOW EASY TEMPERATURE AND TIMER ADJUSTMENTS!
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$51.99 $64.99
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Magic Mill Food Dehydrator Machine | 5 Stackable Stainless Steel Trays Jerky Dryer with Digital Adjustable Timer & Temperature Control - Electric Food Preserver for Fruits, Veggies, Meats & Dog Treats
5 Elite Gourmet EFD319 Food Dehydrator, 5 BPA-Free 11.4" Trays Adjustable Temperature Controls, Jerky, Herbs, Fruit, Veggies, Dried Snacks, Black

Elite Gourmet EFD319 Food Dehydrator, 5 BPA-Free 11.4" Trays Adjustable Temperature Controls, Jerky, Herbs, Fruit, Veggies, Dried Snacks, Black

  • ADJUSTABLE TEMP FOR PERFECT DEHYDRATION, 95°F TO 158°F RANGE!

  • CREATE HEALTHY SNACKS: NO PRESERVATIVES, JUST NATURAL GOODNESS!

  • GREAT FOR CRAFTS: DRY FLOWERS & TREATS FOR YOUR PETS EFFORTLESSLY!

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$39.99
Elite Gourmet EFD319 Food Dehydrator, 5 BPA-Free 11.4" Trays Adjustable Temperature Controls, Jerky, Herbs, Fruit, Veggies, Dried Snacks, Black
6 LOVE MOMENT Electric Mason Jar Vacuum Sealer Kit for Wide Mouth and Regular Mouth Mason Jars

LOVE MOMENT Electric Mason Jar Vacuum Sealer Kit for Wide Mouth and Regular Mouth Mason Jars

  • DUAL SEAL OPTIONS FOR VERSATILE MASON JAR COMPATIBILITY.

  • COMPLETE KIT FOR ALL YOUR VACUUM SEALING NEEDS INCLUDED.

  • ONE-BUTTON OPERATION SIMPLIFIES VACUUM SEALING PROCESS!

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$23.99 $29.99
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LOVE MOMENT Electric Mason Jar Vacuum Sealer Kit for Wide Mouth and Regular Mouth Mason Jars
7 Complete Dehydrator Cookbook: How to Dehydrate Fruit, Vegetables, Meat & More

Complete Dehydrator Cookbook: How to Dehydrate Fruit, Vegetables, Meat & More

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$10.30 $18.99
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Complete Dehydrator Cookbook: How to Dehydrate Fruit, Vegetables, Meat & More
8 400cc Oxygen Absorbers for Food Storage - 100 Count (20x Packs of 5) - for Long Term Food Storage & Survival, Mylar Bags, Canning, Harvest Right Freeze Dryer, Dehydrated, and Preserved Foods

400cc Oxygen Absorbers for Food Storage - 100 Count (20x Packs of 5) - for Long Term Food Storage & Survival, Mylar Bags, Canning, Harvest Right Freeze Dryer, Dehydrated, and Preserved Foods

  • EXTEND SHELF LIFE: PERFECT FOR GRAINS, BEANS, AND DEHYDRATED FOODS.
  • SAFE & RELIABLE: FOOD-GRADE PACKAGING MEETS STRICT SAFETY STANDARDS.
  • MAXIMUM POTENCY: SEALED IN FIVE PACKS TO PREVENT OXYGEN EXPOSURE.
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$8.99
400cc Oxygen Absorbers for Food Storage - 100 Count (20x Packs of 5) - for Long Term Food Storage & Survival, Mylar Bags, Canning, Harvest Right Freeze Dryer, Dehydrated, and Preserved Foods
9 Food Dehydrator, 12 Stainless Steel Trays in 850W Electric Dehydrator Machine, 48 Hour Digital Timer and 165°F Temperature Control, Food Dryer for Jerky, Dog Treats, Herbs, Meat, Fruit and Veggies

Food Dehydrator, 12 Stainless Steel Trays in 850W Electric Dehydrator Machine, 48 Hour Digital Timer and 165°F Temperature Control, Food Dryer for Jerky, Dog Treats, Herbs, Meat, Fruit and Veggies

  • EFFORTLESS SNACKING: 10 ONE-TOUCH PRESETS FOR PERFECT DRYING EVERY TIME!

  • AUTOMATIC SAFETY FEATURES: SLEEP SOUNDLY WHILE IT SHUTS OFF WHEN DONE.

  • VERSATILE USAGE: CREATE SNACKS, JERKY, AND TREATS FOR ALL YOUR NEEDS!

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$179.99
Food Dehydrator, 12 Stainless Steel Trays in 850W Electric Dehydrator Machine, 48 Hour Digital Timer and 165°F Temperature Control, Food Dryer for Jerky, Dog Treats, Herbs, Meat, Fruit and Veggies
10 VEVOR Food Dehydrator Machine, 8 Stainless Steel Trays, 400W Electric Food Dryer with Adjustable Temperature & 24-Hour Timer, Freeze Dryer for Jerky, Meat, Fruit, Vegetables, Herbs, Dog Treats

VEVOR Food Dehydrator Machine, 8 Stainless Steel Trays, 400W Electric Food Dryer with Adjustable Temperature & 24-Hour Timer, Freeze Dryer for Jerky, Meat, Fruit, Vegetables, Herbs, Dog Treats

  • EVEN DRYING WITH UPGRADED HEATING FOR MAXIMUM NUTRIENT RETENTION.
  • EIGHT STAINLESS STEEL TRAYS WITH SAFE, EASY-TO-CLEAN DESIGN.
  • 8-LAYER CAPACITY WITH SMART CONTROL FOR HASSLE-FREE DRYING.
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$90.00
VEVOR Food Dehydrator Machine, 8 Stainless Steel Trays, 400W Electric Food Dryer with Adjustable Temperature & 24-Hour Timer, Freeze Dryer for Jerky, Meat, Fruit, Vegetables, Herbs, Dog Treats
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Freeze-drying is a food preservation process where food is quickly frozen, and then the ice is turned into water vapour. It is then removed by placing the frozen food in a vacuum, resulting in it being dehydrated.

Normally freeze drying is done by professional companies with specialist equipment. But, it can be done at home.

What is the point of freeze drying food?

Freeze-dried foods are used by astronauts, campers, backpackers, food manufacturers, doomsday preppers and the military. You can buy freeze-dried foods for home use. For example, fruit pieces that you might find in some cereals and space ice cream. You can get entire freeze dried meals, as almost all foods can be freeze-dried.

Advantages and Disadvantages of Freeze Drying Food

Advantages

  • As the water is completely removed from the food, it is very light. This is why it is used by astronauts, campers and the military, as it is easier and cheaper to move around.
  • Freeze-dried foods tend to retain most, if not all of their nutrients, taste, shape and size.
  • You don’t need to refrigerate freeze dried food, and it can last for months or years.
  • Freeze-dried foods can be rehydrated very quickly, unlike dehydrated foods.

Disadvantages

  • Freeze drying food is can be quite expensive due to the specialised equipment.
  • Freeze dried food takes up almost as much space as fresh foods, while dehydrated foods take up less space.

Even though freeze dried foods can be expensive, they can come in very useful. You just simply rehydrate them with cold or hot water. Therefore, you can carry the food you need without worrying about having to keep it hot or cold. Their long shelf life also makes freeze-dried foods a viable option for emergency food stores.

How to Freeze Dry Food

Before we get in to how to freeze dry food, there is a little bit of preparation to do.

1. Choosing the types of food for Freeze Drying

As we said before, fruit and veg with high water content are the best ones to freeze dry, as are certain meats and fish. It is best to Freeze dry food at the peak of its ripeness or freshness. This is because it will taste as good as it possibly can when it’s rehydrated.

  • Fruits and vegetables should be freeze dried when they are in season and fully ripe.
  • Meat should be freeze dried after it has been cooked and cooled, as should full meals. Make sure you don’t freeze dry them after they have been in the fridge for a few days, or they’ll taste like leftovers when you bring them back to life.

You really don’t want to freeze dry foods that won’t taste good when they are reconstituted. Some foods, such as berries and apples don’t need to be reconstituted and taste nice as they are. However, meat or spaghetti, will need to be reconstituted with moisture in order to be edible. Examples of foods that cannot be reconstituted are bread, cake or anything yeast based. This is because their texture is altered by its freshness.

2. Get your food ready for Freeze Drying

  • Wash and dry the food thoroughly if it needs to be
  • Slice the food into small pieces. Cut apples, peppers, potatoes and other fruit and vegetables into small chunks, so that the moisture is easily removed.

How to Freeze Dry Food Using Different Methods

1. Freeze Drying Machine

The easiest way to freeze dry food is to use a freeze drying machine. These are a little bit bigger than a microwave and do all the hard work for you. Simply slice the food up and lay it on the trays, switch the machine on and let it do its thing. 24 hours later your food is perfectly freeze dried without any intervention from you.

Have a look at the video below to see how the Harvest Right Home Freeze Dryer works.

2. How to Freeze Dry Food with your Freezer

  1. Place the prepared food on a plate or tray making sure the pieces of food are not too close together or touching.
  2. Put the tray of food in the freezer. Ideally, the freezer should be empty of other items.

If you choose this method, do not open the freezer while the food is freezing. This is because it will slow the freezing process, and cause ice crystals to develop on the food.

A deep freezer, is best and the food should be frozen at the lowest temperature possible.

  3. Keep the food in the freezer until it has freeze dried. It will take about a week for all of the moisture to be removed from the food.

To make sure the food is completely freeze dried. Remove a piece of it and allow it to thaw. If it turns black, the food is not freeze dried yet.

Once you are sure the food is completely freeze dried, put it in freezer bags. Make sure you push the air out before you seal the bags. You can now store them in your freezer, a cool dry cupboard or in your emergency preparedness kit.

3. How to Freeze Dry Food with Dry Ice

  1. Place your food in freezer bags and lay them out flat.
  2. Push all the air out of the bags before sealing them up.
  3. Make sure you seal the bag up airtight.
  4. Place the freezer bags in a large cool box and cover the food with dry ice.
  5. Put the cool box in the freezer.
  6. After 6 hours, put the lid on to the cool box.
  7. After 24 hours, check to see if you still have dry ice. If it has gone, the food is ready.

Remember to always wear gloves and long sleeves while handling dry ice.

4. How to Freeze Dry Food with a Vacuum Chamber

  1. Place your food on a plate or tray. Make sure you spread it out so that the pieces of food are not too close or touching.
  2. Place the tray of food in the freezer and freeze until solid.
  3. Place the frozen food in the vacuum chamber set to about 120 m Torr. Set the temperature to 10 °C (50 °F).

This process should take about a week depending on the set parameters. Check a piece of food after waiting the proper time to make sure it is properly freeze dried.

How to Reconstitute Freeze Dried Food

  1. Remove the freeze dried food from the freezer bags and put it in a bowl or saucepan.
  2. Boil some water on the stove.
  3. Pour some boiling water over the freeze-dried food. As it absorbs moisture, it will fill out. If it seems to need more water, pour a little more over the food. Repeat until the food is fully reconstituted.