Tips & Tricks To Dehydrate Onions

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jars of dehydrated and powered flakes

Dehydrate Into Onion Powder and Minced Onions

Whether from your garden or purchased at the store, you can dehydrate onions and make your own minced onions and onion powder.  Keep some of the onions in larger pieces and you can also make your own onion soup mix and use in your favorite recipes.

You can have them on hand and use them in place of fresh onions.  Dried onions have a longer shelf life than fresh too.

And once you start dehydrating foods, you will want to start dehydrating more foods. Like carrots, apples and other fruits and vegetables.

room temperature slice onions on cutting board

How Do You Dehydrate Onions?

You will need to have a dehydrator to make dehydrated onions. Find one that is in your budge. Using a dehydrator allows cooler temperatures to warm and dry onions versus in the oven, where it can possibly burn.

You start with fresh onions and onion slices. You do not need chopped onions as we will crush the onions once dried. The onions are dehydrated for several hours until crisp and then turned into minced dried onions, onion flakes and onion powder.

Unlike dehydrating tomatoes for powder, there is going to be a lot of odor from dehydrating, so placing the dehydrator outside is best to keep the house from smelling for several days.

chilled bag sliced onions

How Many Onions Are Needed To Dehydrate?

We dehydrated 15 pounds of fresh onions and got 1 quart (4 cups) of dried onion flakes. We also got 1 cup onion powder. This was completed with 2 rounds to dehydrating onions with 9 dehydrator trays in the dehydrator.

dehydrate raw onions on tray

How Do You Dry Onions?

You will need to have a dehydrator to make dried onions. Find one that is in your budget. Using a dehydrator allows cooler temperatures to warm air to dry onions versus in the oven, where it can possibly burn.

dehydrating onions

How Full Do Are The Trays Filled?

You will want to put as many onions as possible on the trays. They will shrink. With that said, you also want to give the onions room to have air circulate. This will allow prevent you from having to reprocess from not done onions.

crisp dehydrated onion in dehydrator

Can I Dehydrate In The Oven?

You can dehydrate onions using the oven. You will need to monitor often to prevent burning. This should only be done at the lowest temperature. You may find it easier to do with a dehydrator as it is a hands off operation with minimal monitoring.

dried onions ground in coffee grinder

Can You Make Homemade Onion Powder?

Yes. When you are dehydrating onions, you can grind everything down to powder. If you are wanting to do powder and minced onions, you can sift with a mesh strainer to separate and get the powder separately.

dehydrated onion flakes in metal sifter

jars of dehydrated and powered onion flakes
Print Recipe
5 from 1 vote

Dehydrating Onions

Dehydrate onions for use in all your favorite recipes. Turn into soup and use in dips. Or just use them to help season your favorite dishes.
Course: Dehydrating
Cuisine: American
Author: Regina Sober

Ingredients

  • onions

Instructions

  • Prepare the onions by cutting off the ends and removing the out skin.
  • Cut the onions into 1/2 inch slices and place into a zip bag.
  • Place the bag(s) into the refrigerator and allow them to sit for 3-4 hours (optional)
  • Place the onions onto dehydrator trays.
  • Put the full trays into the dehydrator and set temp to 135F.
  • Allow the onions to dehydrated 15-20 hours. The onions should be crisp.
  • Remove the onions from the dehydrator.
  • Take your grinder (we use a coffee grinder) to grind the onions to small pieces.
    Alternatively, if you don't want them small, place into the jar and press down to make them smaller, but not minced.
  • Use the mesh strainer to separate the powder from the chopped onions.
  • Place the powder into a separate jar.
  • Stir the mix for a few days as there may be a little moisture left.
  • Label and place the jar tops on.

Video

YouTube video

Notes

If you can, place the dehydrator outside (protected from the elements).
Onions are stinky and will fill your house (and nose) with the smell of onions.  And the smell will linger for a few days.

Dehydrate onions for use in all your favorite recipes. Turn into soup and use in dips. Or just use them to help season your favorite dishes.


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