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Ilsa 7-Inch Cast Iron Heat Diffuser

by Ilsa
4.4 out of 5 stars 390 customer reviews
| 60 answered questions

List Price: $22.99
Price: $20.39 & FREE Shipping on orders over $35. Details
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  • Heat diffuser; eliminates unwanted hot spots
  • Made of cast iron; evens your electric or gas burners heat surface
  • Have the benefits of cooking with cast iron without the care and excessive weight of cast iron cookware
  • Includes stainless steel handle for safety and convenience
  • 7-Inch Diameter
10 new from $16.99 1 used from $18.99

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$20.39 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Ilsa 7-Inch Cast Iron Heat Diffuser
  • +
  • Ilsa Cast Iron Heat Diffuser Reducer 8.25 Inch
  • +
  • Cooks Innovations SimmerMat Heat Diffuser
Total price: $61.28
Buy the selected items together


Product Description

Package Quantity: 1 | Size: 1 Pack

One of the most important elements of stovetop cooking is even heat. That’s one of the reasons why cooks worldwide turn to cast iron cookware. However, cast iron cookware typically requires a considerable amount of care and attention and it is heavy, for your wrists and shelves. With the Harold Import Cast Iron Heat Diffuser you can have the even heat of cast iron cookware, without having to use cast iron cookware. Simply place the diffuser on your electric or gas burner then place your regular pots and pans on top of the diffuser. Voila. No more hot spots; even heat for all of your culinary creations. Includes stainless steel handle for safety and convenience. Cast iron. 7-inch in diameter.

Product Details

Package Quantity: 1 | Size: 1 Pack
  • Product Dimensions: 7.2 x 7.2 x 3 inches ; 1.1 pounds
  • Shipping Weight: 1.4 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B000I1WO8C
  • Item model number: 255
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (390 customer reviews)
  • Amazon Best Sellers Rank: #4,303 in Kitchen & Dining (See Top 100 in Kitchen & Dining)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Reviews

Top Customer Reviews

Size: 1 PackItem Package Quantity: 1
We've had ours for over 20 years now, no sign of rust at all. There is some discoloration but doesn't affect it. I don't know if it's mentioned but the different sides are used for the type of stove you have. The glossy side is used facing down if you use gas, flipped over if you use electric.
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Size: 1 PackItem Package Quantity: 1 Verified Purchase
I got this for my electric range because it worked great on my mom's gas stove. And the product description clearly states, "evens your electric or gas burners heat surface." But this is NOT true -- unless you discount the horrible blistering and flaking that occurs after just one use. See my photos in the customer photos.
6 Comments 89 of 89 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 PackItem Package Quantity: 1 Verified Purchase
This device is worth it's weight in gold. I cook a lot of pasta sauce and like to simmer it for 2-3 hours. Without this diffuser I would have to stir and scrape the bottom of the pot every 15 minutes to prevent scorching now it is every 30 to 40 minutes between stirs. It evenly distributes the heat to the entire bottom of the pan.
Comment 108 of 111 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 PackItem Package Quantity: 1 Verified Purchase
I have a Visions Glass Pot that overheats and causes burning on the stove. This product diffuses the heat as promised.

The product is solid and seems to have an enamel coating on the top. Underneath you can see the cast iron and it does not have the same coating. It is made in Italy and mine came with a metal hook that I assume is used to lift the item off the stove. The first time I used it, I noticed some kind of smell after heating which kicked my air purifier on.

Be careful when using pots that are not dry. I had just washed my pot and set it on the diffuser without drying. After coming up to temperature, the water between the pot and diffuser started to boil. There is very little space between the two items and the water started to sputter and spit, getting on my skin and slightly burning me like hot splattering oil would.

Of course this can be avoided by drying your pot beforehand. But this could also occur if you what I do sometimes and pour something out of the pot and re-place it on the stove leaving liquid dripping down the side and in between the diffuser and pot.

I also have gas burner grates that don't seem to be completely flat and this causes my 1920s cast iron skillet with heat ring to be a bit tippy. The diffuser solves this problem!

EDITED to add text from product box:

Heat diffuser Cast iron enamelled. Made in Italy. In compliance with E.E.C. regulation 89/109. The Heat Diffuser placed between the heat source and saucepan, eliminates the need to mix foods while cooking because it distributes the heat in a uniform and constant manner. When in use, foods neither burn nor stick, retaining intact all their vitamin, mineral, and protein properties.
Read more ›
3 Comments 57 of 58 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 PackItem Package Quantity: 1
I've used this particular diffuser on my gas cooktops for more than 25 years. I dragged two back from Europe, where you find them in virtually every home, when they weren't yet available in the U.S. It allows you to control heat distribution under a pan with great accuracy. You wouldn't be able to make fine sauces, like a beurre blanc (yes we're still allowed), without it. Rice never sticks to the pot for those of use who just throw a pot on the stove instead of rummaging around for yet another 'groovy' appliance. Well, nothing burns to the bottom of your pots and pans with these cast iron heat diffusers. It's not needed on every burner most of the time, but when you're doing something with difficult ingredients or want a long, slow simmer, it makes the difference between garbage and gourmet. Like all the other reviewers, I won't live without it, period.
Comment 61 of 65 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 PackItem Package Quantity: 1 Verified Purchase
It works like promised. I have a gas stove that runs on propane, producing a high flame even on simmer. This takes care of the problem giving a true simmer. There is some discoloration after you use it and it can get VERY hot - be careful after cooking.
1 Comment 76 of 83 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 PackItem Package Quantity: 1 Verified Purchase
We were delighted when the landlord got us a new stove, and we love cooking with gas, BUT even the simmer burner burns so hot that making slow things like spaghetti sauce was impossible. This diffuser has been used constantly. It is sturdy and works perfectly. I like the handle that allows it to be removed from the stove when hot, but am not sure if I've ever used it, as we pretty much let the diffuser live on a back burner. I am seriously considering buying another one so we can have TWO burners that allow for longer simmering.
Comment 31 of 32 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: 1 PackItem Package Quantity: 1 Verified Purchase
For people with glass top stoves, this cast iron defuser is essential. I do alot of steam canning and this defuser keeps the canner from sticking to the stovetop. The only thing that i have found, though, is that the paint on the defuser began to bubble up and slough off onto the bottom of my canner. But, all in all, i like this defuser.
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Ilsa 7-Inch Cast Iron Heat Diffuser
This item: Ilsa 7-Inch Cast Iron Heat Diffuser
Price: $20.39
Ships from and sold by Amazon.com
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