Using a Convection Oven to Bake Your Polymer Clay

Baking Polymer Clay In A Convection OvenVideo #467: I’m Love’n my brand new Kitchenaid Counter Top Convection Oven.

Topics Covered In This Video:

  • Upgrade from an old Black and Decker Toaster Oven to a new Kitchenaid Counter top Convection Oven.
  • Christmas Gift from my Mom and Dad.
  • Old oven was small and needed tiles on top and inside to help stabilize the temperature to keep it from spiking.
  • Convection ovens contain a fan that moves the warm air around, keeping the temperature more even.
  • What I love about the Kitchenaid Counter Top Convection Oven…
    Plus Some General Notes:

>> It’s pretty with its Stainless Steel and Glass finish.

>>It’s large on the inside (12″ x 12″ rack with more than 5″ clearance) for baking more beads or larger pieces.

>> Comes with an enameled steel baking pan. I lined mine with 4 layers of  file folders to insulate bottom.

>> Convection keeps the temperature very even… no spiking.

>> Large clearance from elements and convection heat seems to eliminate the need to tent your polymer clay while baking.

>> Be sure to still use an oven thermometer to cross reference your oven temperature dial for accuracy. Adjust dial until the temp in oven is the proper temp for your brand of polymer clay. Premo bakes at 275F.

>> Use only the Bake Setting when baking polymer clay.

>> This model has a built in 60 minute timer that automatically shuts off the oven when done.

>> 10 minutes preheat.

>> Please note that because of the fan in convection ovens, if you’re planning on Baking Your Polymer Clay on Cornstarch or Baking Soda, you will need to put it in a closed roasting pan or something, otherwise the fan will blow the powder all around your oven.

Question of the Day:

Do you think you’ll want to put this Kitchenaid Counter top Convection Oven on your wish list for baking polymer clay? Or do you have another brand of oven that you really like? Please leave your comments in the comment section below. We’d love to hear from you!

My goal is to help you to learn quicker and easier ways to bring up the professionalism in your polymer clay art.

Oh and don’t forget to give these videos a Thumbs Up click at YouTube if you are enjoying them. The more Likes a video gets, the higher it rises in the searches. And that means even more people will be able to join in on this polymer clay journey of a lifetime.

Also, by subscribing to our YouTube Channel directly, you will receive notifications as soon as new videos are uploaded. To subscribe, click here… Baking Polymer Clay In a Convection Oven. The Subscribe Button is right near the top of that YouTube page.

Looking forward to hearing from you!

Cindy Lietz SignaturePolymer Clay Tutor
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  1. I bought a refurbished Breville convection oven a few years ago and love how well it works with baking polymer clay. I usually put a piece of plain paper on a tile and bake on that – never tent it – and have used the lower rack and the middle rack to bake on. It’s set to bake at 270 degrees – 1 hour – and turns off when done. It heats up to that temperature in 3 or 4 minutes. Definitely worth checking out this type of oven if you don’t already have one.

    • Fran, I looked at that oven and really liked it also. I had a hard time deciding on that one or the Kitchenaide. I didn’t know they had refurbished ones. That is good to know.

  2. I switched over to convections oven about a year ago. It looks like the same size but is a different brand. Mine has 2 racks and I can bake quite few things in there. I also like the large glass in the door so I can monitor what is going on in there without opening the door.
    My biggest challenge is stopping my husband from moving it into the kitchen to use while making holiday dinners.

  3. Hurray, Cindy got my favorite oven. You know I am a great researcher of products especially when buying for myself. This oven came out at the top of my list almost 2 yrs ago and I have never looked back. It’s amazing how well it holds the temp and never spikes. I too use the broiling pan for most items and also use layers of quilt batting for my delicate pieces. I have found I can eliminate corn starch this way in some instances. I still tent some items especially if they are light colored clay. I can’t say enough good things about this oven so if anyone is in the process of looking to buy a new oven, you should seriously consider this one. It is a little pricey, but if you live by a Bed, Bath and Beyond and can wait for their 20% off coupon, you can save some bucks. They also have it online and shipping is free at certain times or it’s very reasonable. I think we had a really good indepth discussion on ovens here in the blog awhile back so it might help newer members to search the archives and read about them. I am so happy for you Cindy, what a wonderful gift.

  4. Laura H – I got my refurbished Breville oven on ebay. New ones are very pricey and refurbished ones are not cheap, but still much less. I imagine you could also google Breville convection toaster ovens and come up with some other sites where they might be available.

    Mine looked like new and has not had any problems. I know they say to have a dedicated clay oven, but I also use mine to make toast and have also fixed pizzas in it. It works beautifully with clay – I have never had any problems – I didn’t have an oven thermometer so have never checked it for spikes. I put most objects on a tile and have never tented them. I bake at 270 degrees for 1 hour and have baked hundreds of items that way. Every one has come out perfect so I don’t have a single negative comment to make about this oven.

  5. Congrats Cindy on the new Oven, I’ve been eying the one on the infomercial in the wee hours of the morning, I think it’s called Nu-wave, it’s round and clear, is that the same technology of convection?

    • Hi Ken – l had a Nu-Wave infra-red/halogen oven – don’t know if it’s the same as what you’re looking at. Mine had a lift-off plastic dome. It worked very well, though it was hard to keep a stable temperature at times, but after about 9 months the plastic was cracking. I think this was caused by all the oily residue that is given off during the baking of polymer clay which must have reacted with the hard plastic. That type of oven has one heating element in the top and a very powerful fan that cycles on and off. I have another Halogen one now which has a glass bowl and have no problems.
      An oven like Cindy’s is a lot easier to use though!

      • I had one of those glass ‘turbo’ oven years before I worked with polymer clay, so I can’t tell you if they would work as well as my new Kitchenaid, but I do remember that the fan blew quite hard and went in kind of a cyclone. I have heard that others have problems with thin sheets and light clay pieces, blowing around in those types of ovens. My oven does have a fan, but it just blows lighting around. The only problem I have heard of is with the powders like cornstarch, getting lifted and blown around. Not the actual clay pieces. Like Carrie said, the regular convection oven may be a lot easier to use.

        • Hi Cindy,
          Just to say thanks for the information about your new counter top convection oven. After a long search,( here in the UK) I discovered it was cheaper to buy the Kitchenaid from USA as they are mega expensive here. Even with the shipping and handling costs it works out about three quarter of the price. from USA than UK. So now have to wait for it’s arrival…cheers…..xx

  6. Cindy, congratulation on your new machine!
    For a year I used Amaco oven… what a waste of money: ages for preheating, very small, and hot spots, etc.
    Three month ago I bought Hamilton Beach 31100 Countertop Oven with Convection and Rotisserie on Amazon. I read that this Hamilton Beach ‘toaster oven’ workhorse has been very popular for a long time among polymer clay artists. The San Diego Polymer Clay Guild has purchased these for use at their annual Fall retreats. For 4 days these ovens are used from dawn to almost midnight and there were no issues with the ovens.

    I like my 31100 :) because it’s BIG . I can put 3 shelves. The dials are easy to set. 10 min preheat and I’m ready to cure my pieces. Temp is consistent 275 :) (have thermometer inside). I use Convection mode and both the top and the bottom elements heating. It works for me and I absolutely love it.


  7. Love your new oven…what a thoughtful, appropriate gift for you!

    Looking forward to 2014, a year full of Cindy’s wonderful Polymer Clay tips and tricks…yeah!


  8. I have had a Hamilton Beach convection oven for about 6 years and just love it. I always preheat it before putting my clay in to bake. Once preheated, it holds temp very well! I would get another one if this one ever stops working. Now that I know about the KitchenAid one, it gives me another option when the time comes.

    Cindy – enjoy your oven!

  9. I bake in a convection oven, the same one we use for food.. It works really well
    and I use a baking bag (like for a turkey) so the fumes aren’t a problem in the oven.
    It would also protect the powders from flying around.
    Thanks for all your help Cindy.

    • Hi Deni,

      Thanks for the great tip about the baking (Turkey) bags it is so helpful when guys n gals share their tips. I just love this site as everyone is so helpful and generous in sharing their secrets. So that’s one item to go on my shopping list…..cheers xx……

  10. Hi, I love your videos. My convection oven is a Kitchenaid, too. A different model from yours, it has the controls along the bottom front. I’ve had it for about 6 years and it has never failed me. I love it! I am careful to cover the baking soda that I sometimes bake things in, but the fan is never strong enough to blow thin pieces of polymer around.

  11. My convection oven is a German one named “Steba” — same dimensions as yours, and I love it. We live in Germany, so that’s the reason. It cost about 125 euros, which would be about $170. The hardest part was finding the most reliable oven thermometer. Turns out that early on I was using an old one that was no longer accurate and all my early clay items weren’t baked hard enough!

  12. Waited impatiently for the step down/up transformer to arrive so I can use my new U.S. made KitchenAid convection oven (just like Cindy’s) It arrived this morning and now have to decide where it will “live” as got heaps of beads ready to cure and two oven thermometers.
    The oven and converter plus postage together was still cheaper than buying just the oven here in UK, so guess what I will be doing most of the weekend…..cheers..xx

    • Congrats on the move up. Purchased the same oven and waiting on receipt. So excited because it will really help making more pieces.

      • Love love love this oven, so easy to use! Got mine reworked and received here for under $100, off Google shopping. It’s a heavy stable unit that comes with a lot of grills and pannage. Now, for the JoolTool.

  13. Hi Cindy, I need to buy a new oven for my polymer, I bought a cheap table top oven and it kept its temperature until I opened the door to put my pieces in and then the temperature dropped big time!! It took nearly 30 mins to get back up to temperature. What do u think about halogen ovens? Have been getting mixed opinions about them and now I don’t know what to do HELP!! Many thanks xx

    • Hi Samantha, to tell you the truth I don’t know much about halogen ovens. I do love my new Kitchenaid Convection machine though… holds the temp like a dream!

  14. Hi Cindy,

    I’m so excited I had to share. I just ordered a manufactured refurbished convection oven like yours. I can’t wait till it gets here:) I have been using my little craft oven that I bought a few years ago when I started with clay. It was ok but the temp never stayed the same so I had to watch it like a hawk, and I did scorch some projects :(.

    Have a nice remainder of the weekend :)


      • Hi,
        Well I received my oven,it is beautiful , looks brand new…..but there is something wrong with it :( I guess it is the thermostat, it just keeps getting hotter and hotter, all the way to 450…. I have been trying to contact the seller but as of yet he hasn’t responded. I’m sad. I purchased it from ebay.


        • That is very disappointing Ginny! I hope that you are able to get it replaced… when working properly, they make wonderful polymer clay ovens! If you get nowhere with the seller, maybe try contacting the manufacturer. They might be able to send you a part to fix it.

  15. Hi Cindy,
    Does your new oven work just as well if you load up 2 shelves? Or does the top risk scorching and the bottom one not cooked as well?

    • Hi Veronica, my oven only came with one shelf, but even if it did, it wouldn’t be good to bake on two racks, because both of the racks would be too close to the elements. I use the one rack I have on the bottom slot with the rack turned so it is further from the bottom element, rather than closer. This puts my rack as close to the center of the oven as possible and therefore giving me the most even heat from both sides.

  16. There is a KitchenAid Countertop Convection Oven on sale at Costco until 11/26. Around $65 US. I think it is the same (or very similar) to the one Cindy has. I am very tempted to get myself an early Christmas present!

    I have been traveling for business so much the past 3 months and really need to get my claying & jewellery-making mojo back. Fortunately I get to go to my PC guild tomorrow and can play with clay. They have convection ovens that work beautifully, while I have just a toaster oven or my kitchen oven (with aluminum pan covers ;-) ). A new convection oven should come with quite a bit of mojo!

  17. Hi Cindy,
    I have a convection oven. The description says “baking temperature” and “baking time” are 10% less than in a conventional oven.
    Time is not the problem but temperature?
    10% less is a lot difference.
    I do not want to overheat the clay.
    What do you think about?
    Kind regards

  18. I finally had to buy a convection oven. I’m on my 3rd toaster oven and my 3rd thermometer. I am tired of burning my projects. My new oven is not here yet, but how can I know my thermometer is correct? The last oven was a craft oven I got at Joanns. It’s going back. The thermometers were from different stores, but not reliable at all. It never went higher than 250, but it burnt all of the molds I was making and one very nice pendant became soft like rubber and got huge bubbles on the top. And it was tented. HELP!!!

    • Peg, go to a Bed, Bath and Beyond or a Kitchen Store and have them recommend 2 oven thermometers, to use in your new oven. Tell them you need accuracy. You will get a better one that way. The cheaper ones do fluxuate but then so does your oven. Put one in the front and one in the back when baking. You will soon know where your hot spots are and will be able to compensate. Good Luck Doll.

  19. Thanks, Dixie Ann. I’ve actually got a trip planned this next week to use my 20% off coupon on a new thermometer. I could just buy 2.

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