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The Wonder Oven: Works Like a Powerless Crock-Pot

Wonder Oven: Works Like a Powerless Crock-Pot! Keeps Hot Things Hot or Can Also Keep Cold Things Cold! Find directions on how to make one at Prepared-Housewives.com #wonderoven #alternative cooking #emergencypreparedness

What is a Wonder Oven (AKA Wonder Box)?

My neighbor loved my new bean bag, but when I told her it actually cooked food she thought I was crazy. This little cushion does more than just look pretty, it keeps Hot things Hot, or it can keep Cold things Cold.

Basically, you get your food boiling for a few minutes, snuggle it right down into the center, and then put a cushion on top. It continues to cook your food without any power and the best part is, your food doesn’t burn!

You can also throw in ice cream and when you pull it out 4 hours later, it will still be frozen!  You can make one with the instructions below, or buy one online. I just wonder how I survived so long without it :)

Wonder Oven SUPPLIES:

  • FABRIC –  2 1/4 yards (56/60″ wide) or 3 1/4 yards (42/45″ wide) of Soft Cotton or Broadcloth Material (100% cotton recommended). Try not to get anything too thin, stretchy, or use any material that might melt :)
    • To use different fabric for the top and bottom you need:
      • Top: 1  1/4 yards
      • Bottom: 2 yards
  • PATTERN – The pattern used can be found HERE.
  • SEWING SUPPLIES – Scissors, Sewing Machine, Thread, Pins, & Sharpie (to trace pattern)
  • DRYER SHEETS – Used to wipe things down to help decrease static.
  • BUCKET/GALLON CONTAINER – These will help to pour and measure beads into the wonder oven.
  • FUNNEL – This will be placed into the opening in the wonder oven to help fill it with beads.
  • FILLER – Small Beads (Polystyrene) are one of the best fillers to use, because they’re great insulators and can be easily washed. These can be purchased online HERE, or you can pick some up at Houston Foam! People have also used Wood Shavings, Hay, Shredded Foam, Shipping Popcorn, Wool, Feathers, Leaves, Shredded Newspaper, Saw Dust, Extra Kids, etc. So really anything you have lying around that won’t mold or burn up should work!

Which Filler is the Best? There are so many options when it comes to filling the wonder oven, but according to this experiment, the small 1/8 inch size beads retained heat the longest. “After 3 hours of comparing different size beads and regrind fill, the wonder box with the smaller beads was 7 degrees warmer than its counterpart with larger beads. Here is their experiment results on a time/temperature graph (click to make it larger):”

Wonder-box-performance

You have all your beads, now what?

Follow the instructions below and you will be cooking in no time. Hopefully my instructions make sense, but if not head over HERE for even more pictures and details! Good luck!

Or, if you are ready to get cooking, here’s a great place you can just BUY A WONDER OVEN!

car full of wonder oven beads

Wonder Oven INSTRUCTIONS:

1- DRAW PATTERN ON FABRIC

PATTERN – The pattern used can be found HERE.

Make sure your fabric is folded so you will be able to cut 4 out at the same time. Once folded, put the pattern on top and trace around it.

patterns used to make wonder ovens

draw wonder oven pattern onto fabric

2 – CUT PATTERN OUT

  • Cut out 4 top pieces
  • Cut out 4 bottom pieces

cut out wonder oven pattern

3- SEW TOP PIECES

  • Take 2 of the pieces and place them right sides together.
  • Pin and sew them on all the sides with the dotted line (located on pattern).
  • Double Stitch if you want a stronger seam.

sew top pieces together

  • Do the same with the other 2 pieces except LEAVE A SPACE on one side (as seen on pattern), so that you can turn and fill the pillow later.

leave an opening when sewing

4- SEW TOP PIECES TOGETHER

  • Fold over the top half of the fabric and repeat for other set.

sew top pieces together

  • Place both sets right sides together and sew them together.

lay both top pieces together

sew wonder oven top

5- REPEAT STEP 3 & 4 WITH BOTTOM PIECES

6- PULL OUT FABRIC

  • Pull inside piece thru the turn/fill hole and now you have a flat pillow.

pull fabric through

continue pulling wonder oven top through opening

wonder oven top

7- GET READY TO FILL

  • Wipe down the cardboard, scoop, bucket, your hands and arms with a dryer sheet. This helps stop the static electricity that develops with the Styrofoam.

wipe hands down

  • Make the funnel and insert into the small opening/fill hole that was left.

make a funnel

8- FILL WONDER OVENS:

10 Gallons per Wonder Oven

Use a 1 gallon container and scoop the following into each piece:

  • TOP – 4 Gallons of Beads
  • BOTTOM – 6 Gallons of Beads

fill wonder oven with beads

You can also measure the beads into a bucket and pour it all at once inside the funnel.

fill bucket to help fill wonder oven

9- SEW UP THE FILL HOLE

Sew up the hole you used to fill the wonder oven.

sew the fill hole

10- CLEAN-UP

By now it may look like it decided to snow inside your house. Get the kids and run around in it, then hand them vacuums and brooms to help clean-up.

Congrats, you are now DONE!!!

EXTRA TIPS:

  •  Storing Your Wonder Oven

You can purchase a 20 gallon Rubbermaid box to put your Wonder Oven in to help store it. Some Wonder Oven instructions call for 19 Gallons of beads which makes it more full, but we recommend only 10 gallons. It allows for bigger pots to be used, and it also conforms to your pot easier.

Having a box or basket to put the Wonder Oven in will help give it some shape and make sure to keep pots nice and snug inside!

storing the wonder oven

  • Decrease Condensation

When cooking there can be some condensation that forms. Our fabulous instructor found that when she used a thin metallic sheet, like an emergency blanket, it helped to decrease the condensation.

All she did was use the blanket as a barrier between the wonder box and the pot that she was cooking with. This will also help with keeping your Wonder Oven clean.

decrease condensation while cooking with foil

cover pot with foil

put wonder oven top on to cook food

  • Cleaning Your Wonder Oven

The Wonder Oven doesn’t need to be cleaned often, but if there are some spills or odors you want to get rid of you can.

Just wash your wonder oven with some hot water and soap, and then dry it on a clothesline.

  • Recipes

I will post more about how to use your wonder oven and some yummy things to make (so make sure to enter your email above to get them), but in the meantime, make sure to check out these great resources!

My Food Storage Cookbook – Detailed step-by-step instructions on how to make bread and many more things in your wonder oven!

kids like to turn the wonder oven into a bing bag

It’s sad when my kids have to jump on top of whatever I’m taking a picture of to get attention :)  I wouldn’t recommend turning your hard work into a bean bag, so make sure to keep it somewhere safe!

  • Buy a Wonder Oven

And remember, if you want to just buy one for yourself or as a gift here’s a great place to get them – Wonder Ovens For Sale!

  • Print Instructions

You can press the Print button below to print off instructions to be able to refer back to, or to put in your Food Storage Binder :)

ENJOY THIS POST? NEVER MISS ANOTHER!

Comments

  1. 2

    Linsay Jarvis says

    April 3, 2013 at 11:03 pm

    Jamie, I completely missed the memo when our stake did the wonder ovens. Do you know how I could get some beads to make one or if anyone has an extra I could buy? Thanks!

    Reply
    • 3

      Prepared Housewives says

      April 3, 2013 at 11:08 pm

      I know you can just buy beads from Wal-mart and Megan can e-mail you a pattern. Ask Megan, she might know too of where some extra beads are – http://myfoodstoragecookbook.com/2013/03/25/radio-show-wonder-ovens/

      Reply
  2. 4

    Gayle says

    April 5, 2013 at 10:27 pm

    What a helpful post! I am debating about making it or buying it, but I know I need one ASAP!
    Blessings,
    Gayle

    Reply
    • 5

      Prepared Housewives says

      April 6, 2013 at 1:57 pm

      I cheated and bought mine, sometimes that is just so much easier :) I did end up making a few too though. There are other options of doing a wonder oven that I will try and post sometime, but you basically wrap your pot in a flannel blanket throw it in a cooler and put a pillow on top. You mainly just need insulation to keep it hot and cooking.

      Reply
      • 6

        Larene Grover says

        September 2, 2013 at 1:06 am

        Where can I purchase a wonder cooker? Making one sounds too complicated to me! Thanks, Larene

        Reply
  3. 7

    jackie says

    April 24, 2013 at 10:24 am

    i love the idea, even now i could use this to save on propane. hmmm… the blanket/cooler idea may be what i try. i like the duel purpose.

    Reply
    • 8

      Prepared Housewives says

      April 24, 2013 at 12:49 pm

      I think the blanket/cooler idea is great! Try it out a few times and see how it works for you. I’m all about using as little propane as possible since it’s hard to store in large quantities.

      Reply
  4. 9

    Ellen says

    August 22, 2013 at 10:39 am

    The Layton City link isn’t viable :( Has this info been removed?

    Reply
    • 10

      Prepared Housewives says

      August 22, 2013 at 1:46 pm

      Bummer! Thanks for letting me know! Next time I’ll make sure to download the links and save them myself. I think I have a copy of it. I’ll try and post some of the instructions from it that are really helpful!

      Reply
  5. 11

    Audra says

    November 1, 2013 at 11:37 pm

    In your instructions you say to use 10 gallons of beads, but most beads I’ve found to buy list them in pounds or cubic feet…. How much is a 10 gallon equivalent? OR alternately, do you know how many ovens I can make with a 6 cubic foot bag of beans?

    Reply
    • 12

      Megan says

      June 2, 2014 at 12:21 pm

      Audra, I know this online product provides enough beads for 5 Wonder Oven SETS, (one larger pillow & one small = a set). Maybe this will be helpful to others looking.

      http://www.foambymail.com/BBPELET/polystyrene-bean-bag-pellets.html

      Reply
  6. 13

    Darlene says

    February 19, 2014 at 2:52 pm

    I tried to make my pattern today…for some reason the dimensions didn’t come out right for me on the bottom pattern. If I use the noted angles and lengths, I end up with longer than 32 in. total. Any suggestions?

    Reply
    • 14

      Jamie S. says

      March 5, 2014 at 5:55 pm

      Sorry, it’s taken forever for me to respond. Take a look at this link for help with the pattern – http://www.iwillprepare.com/cooking_files/Wonder_Box.htm

      Also, if you ask really nice Megan might send a pattern to you. Check out this post and email her – http://myfoodstoragecookbook.com/2013/03/25/radio-show-wonder-ovens/

      Reply
  7. 15

    Susan M says

    October 19, 2014 at 3:23 pm

    I can see how you keep boiling a pot of soup, but how do you bake bread like you mentioned when it’s heat you need. Do you pre warm the “oven” and with what?

    Reply
    • 16

      Jamie S. says

      October 19, 2014 at 3:46 pm

      Check out this post, hopefully this will explain better how to make bread in a wonder oven. Megan does this all the time and is an expert at it. I’ve tried her bread a few times and it’s fantastic.

      Reply
  8. 17

    Barbara says

    November 6, 2014 at 9:54 am

    The beads are sold in cubic feet. Your instructions are in gallons. How many gallons are in a 3 cubic feet bag?

    Reply
    • 18

      Jamie S. says

      November 7, 2014 at 4:00 am

      I believe 1 cubic foot = about 7-8 gallons.

      So a 3 cubic feet bag would be about 21-24 gallons (also depends on the size of the beads.

      If you order any, just call the company and ask, they should hopefully know.

      Reply
  9. 19

    Lucy Zafiratos says

    February 14, 2015 at 10:56 pm

    I am using my wonder oven for the first time and would love some recipe ideas!
    Thanks!
    Lucy

    Reply

Trackbacks

  1. Radio Show: Wonder Ovens! | My Food Storage Cookbook says:
    April 2, 2013 at 9:50 pm

    […] http://www.prepared-housewives.com […]

    Reply
  2. The Wonder Oven and How to use it | Super Prepared says:
    November 27, 2013 at 7:41 am

    […] For a tutorial on how to make one go here. […]

    Reply

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