How to Dehydrate Blueberries

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Dehydrating blueberries is super simple! I really think it’s the easiest fruit to dehydrate.

 How To Dehydrate Blueberries Step by Step:


Start with fresh sweet blueberries. You might make a note next time you purchase a package as to where they came from. Berries from northern states tend to be sweeter than those from southern states, in my experience. So next time you get some super sweet blueberries make a note as to where they came from so you can know what to look for when you’re looking for berries to dehydrate. We’re not adding any sugar in the dehydration process so you want to start out with the sweetest ones you can find.


Wash your blueberries.


That’s a lot of berries! I have a nine tray Excalibur Dehydrator, and this is about 14 dry pints. I filled up 7 of the trays. Two pints to each tray.


Simply place the berries on the tray.


And place in your dehydrator. There are some directions for dehydrating blueberries that will tell you to take a knife and puncture each one. You can do that if you want. I decided it wasn’t worth the time it would take so I leave mine with no punctures.


The down side to not puncturing your berries is that they will take longer to dehydrate. These took about 35 hours.


This is what the blueberries look like when they are dehydrated.


I like to store my dried fruit in canning jars. I vacuum packed these blueberries with a FoodSaver using the FoodSaver attachment for wide mouth jars.


Here I’m using a smaller jar and sealing with a regular mouth attachment to vacuum pack the berries.


I love the FoodSaver attachment because it will fit on the little 4oz jars as well. Here are just enough blueberries for some muffins or perhaps a snack for my boys.

I put the berries in the freezer for two weeks to pasteurize them, then store them in a cool dry place. See, super easy! Buy them. Wash them. Dehydrate them. Eat them. That’s it!

  • Julie says:

    Have three trays drying in the dehydrator, my first attempt with blueberries. Recipe said to blanch them to remove the waxy coating and let the skins break, less than a minute or they will cook. That should lessen the drying time. I’m anxiously awaiting the results.

  • Ashley says:

    I don’t have a food saver yet, but went ahead with dehydrating anyway. They came out great! I put them in the freezer, but because they’re not vacuum packed, how long do you think they will be good for?

    • Jennifer Osuch says:

      Hi Ashley,
      They should be good for a long time in an airtight container. They can be put in long term storage.

  • Helen says:

    I used a 3 peice steamer for my frozen blueberries. I now have the most beautiful crystal blue juice! My intention was two fold: make a gorgeous looking blue berry jelly and blueberry syrup!
    I could use advice/recipe for both projects. Lots of recipes available for blueberry jam but not jelly🙁 would like to use lemon juice to brighten
    The flavor but don’t want to second guess the amount🤔 I am looking for a syrup recipe that does not use corn syrup as a sweetener👎
    The syrup and jelly are my first projects in preservation;so naturally I am thinking, Self Reliant School members🤗 comments, recipes, advice, cautions, tales of success, humor of disasters all will be appreciated and enjoyed👏🏻
    Many thanks to all of my soul mates who think we can successfully complete all projects and have fun on our way to self reliance🤟🏼

  • Barb says:

    do they have to be defrosted first?

  • Claire says:

    I am new to dehydrating, so I’m reading all the articles I can whether I plant to dehydrate the specific item or not. I plan to have blueberry plants in a few years, so getting the knowledge is good.

    Also, I LOVE my foodsaver jar sealer attachment! I use it most for sealing my herbs and spices, helping them stay fresh longer.

  • Jan Ellis says:

    ??? Can fresh frozen blueberries be taken out of the freezer and dehydrated? Just wondering

  • wendy says:

    I have some blueberries in a paper bag in my refrigerator that appear to be drying. Is that an acceptable mode of dehydration?

    • Jennifer Osuch says:

      Hi Wendy,

      I don’t think those blueberries will taste very good. It depends on how long they’ve been in there. If they’ve been in the refrigerator long enough to start drying out they are probably not safe to eat.

  • Amanda says:

    Thank you so much for this post! I forgot to “freeze” mine first, so I was worried that I had ruined them. I have the same dehydrator and just picked 16-20 QTS at my local u-pick. Thank you for the reassurance!

  • Marlene says:

    I don’t like to have my dried blueberres hard little nuggers. I put them in granola and my family didn’t like the hard blueberries. I guess if you want the blueberrires to be a bit softer you have to moniter the drying time? I love the dried blueberrires I can purchase in the stores…they are nice and pliable. That is the results i would love to obtain when I dry my blueberries. I have four blueberry bushes that really produce an amazing amount of berries.

    Thanks for your ideas!

    • Jennifer Osuch says:

      Hi Marlene,
      Most fruit that is dried commercially have preservatives. If you leave a bit of moisture in your blueberries to make them pliable be sure to store them in the refrigerator. If you let the blueberries soak up a bit of milk they will reconstitute. I put them in granola all the time. Maybe try not mixing them into the granola but adding them to the granola just before serving after soaking them in water to reconstitute for a bit?

  • John says:

    In the pictures above of the berries when they are still on the tray there are some that are very light in color. This is the same result that I got when I dehydrated blueberries a couple months ago. Question: Are these light colored berries all right or should they be tossed?

    • Jennifer Osuch says:

      The purple looking ones? Yes, they are fine to eat. They are berries that might have already been punctured so most of their content is gone and all that is left is the skin. They are flaky because they probably should have been taken out of the dehydrator sooner than the rest of the berries. Yeah, I know I’m lazy…..:)

  • Cindy says:

    This is such a great idea!
    I started with FROZEN!!! wild Maine blueberries, picked in northern Maine.
    Then while frozen put them on the perforated sheets in the dehydrator, at 135 degrees for about 36 hours.
    At this point they became hard little nuggets.
    Then into the food processor for a while to really pulverize them into Blueberry Powder.
    So: 5 lbs of wild blueberries dried = about 2 qts dried.
    Then about 1 quart of the dried blueberries = about 1 pint of blueberry powder.

    Starting with frozen berries makes the skins crack so the moisture can get out!!
    Isn’t that a whole lot easier than pricking each one or blanching them first!!!

    I have a 9 shelf Excalibur, so also had Chanterelle mushrooms, bananas, and a huge batch of fruit/nut bars drying at the same time. Just kept rotating them through.

    • DIANE says:

      What do you use the blueberry powder for??

      • Jennifer Osuch says:

        Hi Diane,

        You can use it in tea, a smoothie, in oatmeal, or any other dish you would normally use blueberries in. Having the blueberries powdered means you don’t have to worry about them spoiling.

  • Christina says:

    How long will the bluberries last in jars like that or mylar bags with a oxygen obsorber

    • Jennifer Osuch says:

      Hi Christina,
      My official, keep you safe answer, is up to a year. Although, I’ve heard some say they last a lot longer than that. I have some stored that are over a year old, however, I encourage everyone to make commonsense judgments about food storage and follow safe food storage and handling practices.

  • helen says:

    when i did mine they were huge so after washing and pat drying I cut them in half then put them in the dehydrator 1 cup whole was equal to just over a 1/4 cup dried. It took 18 hours to dry.

  • michelle wolff says:

    I am looking for a conversion from fresh to dried. I can get a good deal on flats and i will by and dry enough for all year but I am not sure how much dried yield there is from one pint.

    • Jennifer says:

      Hi Michelle,

      Letting everyone know conversion amounts is something I’m going to work on! The problem is that I seldom use measuring spoons or cups, except when it comes to hot peppers…..:) Anyway, I’m not sure of the exact conversion. But if I were going to guess, you would probably get 1/4 cup dehydrated blueberries per fresh dry pint. The way to figure it out exactly would be to weigh the blueberries before and after dehydrating. Then you would know the exact conversion. BTW a dry pint (you know the saying “a pint’s pound the world around”) is not a pound it’s a little over 11oz. I promise to do better next time!

  • LOL I’m knee deep in blueberries right now, too. But curious, you put them in the freezer after you’ve dehydrated them? And there’s no issue with moisture?

    • Jennifer says:

      I’ve never had issues with blueberries. My blueberries are truly dehydrated rather than dried like you’d find in a package bought from the store. In other words, they have at least 90% of the moisture removed. Once, I had an issue with my dehydrated watermelon. It was my mistake because the watermelon wasn’t done, but the watermelon was still edible since I had stored it in the freeze right out of the dehydrator. It was just all stuck together from the moisture still left in it. I guess better that it was stuck together rather than having mold growing on it. Putting it in the freezer did double duty in this case, pasteurizing it and also letting me know it wasn’t done without totally ruining all my hard work.

  • Julie S. says:

    Yum! Blueberries are my favorite! I’m buying a dehydrator this week, so thanks for the post. I’ll try this. Once the berries are vacuum-packed in the jar, how long are they good for?

    • Jennifer says:

      Well, the official answer that is commonly excepted by most food storage experts is about one year so I’m going to officially go with that answer….:) However, if I had vacuum-packed dehydrated (over 90% of the moisture gone, so not just dried) blueberries stored in a cool dry place I would still eat them after say a year and a day…..:) So the “real” answer here is use good food storage rules (keep things away from air, moisture and light) and then make sure there is no mold, foul smell, bugs or other red flag that they have gone bad. Then of course use your best judgement when consuming any food.

      • amber says:

        2 2019

        i tried dehydrating blueberries in CO: 4 days: never dried out. my hubby said you had to prick a hole in them. I’m in WA state now – ideas???


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