Heat Diffusers

By BellaCopper

Starting at $35

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High performance solid copper heat diffusers and defroster plates. Copper is a superb conductor of heat. Not only does copper evenly distribute heat, its greater mass allows it to hold more heat.

  • Made in the USA: Mining, smelting, and refining of the copper ore in Utah, Arizona, and Montana; Finish and manufacturing in Ventura, California
  • Heat Diffuser can be used on gas, electric, glass, and ceramic stove tops. Does not work on induction stove tops
  • 6" mini copper heat diffuser: Use for 1 or 2 quart saucepans
  • 8"small copper heat diffuser: Use for small sauce and saute pans
  • 9 " medium copper heat diffuser: Use for multiple small pans and larger sauce pans
  • 10" Large gourmet copper heat diffuser and defroster plate: Use for professional grade stoves, multiple small pans, and larger crock pots
  • Dimensions (in packaging): 6" x 6" x 0.13"
  • Weight: 1.5 lbs.

158 Reviews (4.7 out of 5 Grommets)

Sorted by Rating

Love it

1/12/2019 by Jennifer

Makes cooking at low temperature so much easier! Great product.


Use this constantly

11/5/2018 by Pamela

I cook with gas and have professional cookware, I found I didn't really need this item for that. However, it REALLY does 'thaw like crazy' as it stated. Bought one for my niece as well. She loves it!!More > < Less


Multiplies your cooking options

10/19/2018 by Cathy

These diffusers allows the heat from gas burners to spread out more evenly. Also if you put 2 plates together it increases your cooking surface. Best idea ever!More > < Less


Nice buy

10/12/2018 by Bridget

I love this item!! Works really well!!! Brightens up my kitchen...


Quality product that lives up to its promises

9/25/2018 by David Nissen Kahn

This is an easy review to write and the kind I like best. I have nothing bad to say. I've been using my 10in BellaCopper heat diffuser for a couple of weeks' time. Except for the discoloration, about which as a trained chemist I was unsurprised, there is nothing at all negative to say.

I've used and like Stoughton Steel's Baking Steels as full-time accessories in my oven. They work as advertised and are indispensable. However, they're heavy and awkward to move around and don't fit on my apartment-size range top. BellaCopper fits, looks very nice, and produces the most even heating I've experienced. I'm planning on adding more of them, so as to have one for each of my four burners. They'll be helpful with searing and high-heat cookery, of course, but they'll be particularly useful for simmering, cooking rice, and any other application where scorching is possible and problematical.

In summary, stop hesitating and buy this. If you know the why of heat diffusers, you know enough to jump in. I've tried a number of them before this. Nothing compares. The price is a bit steep, but it gives value for money.
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Bella Copper - diffusers & defrosters

About BellaCopper

Cooking Assist

Copper cookware is prized by kitchen connoisseurs for its unsurpassed ability to distribute heat quickly and evenly. But it’s an expensive metal, and copper pots and pans are an investment that many of us can’t quite justify. Thanks to Pete Mohler, there’s an affordable way to tap the conductive properties of copper without buying expensive new cookware.

Pete, who’s an aerospace engineer, came up with the idea for a copper heat diffuser when he wanted to improve the performance of a mediocre stove. He designed a solid copper plate that fits on top of a stove’s burner, under any ordinary aluminum, iron or stainless steel pan. The copper plate distributes heat evenly across the entire cooking surface of the pan, so foods cook more evenly and with less scorching and scalding. Pete teamed with Bill Hackman, and the two launched BellaCopper to commercialize the idea.

BellaCopper’s hand-finished heat diffusers come in different sizes for maximum versatility. You can use two diffusers side by side to turn two adjacent burners into a single griddle-sized heat source, for example. You can use them as hot plates to keep food warm, or in the oven to maintain a more constant baking temperature. BellaCopper’s heat diffusers also double as defroster plates: If you place two frozen chicken breasts on a room-temperature copper plate, they’ll defrost in about 40 minutes as the internal heat from the plate is transferred to the frozen food.

Who knew a simple copper plate could be so useful in the kitchen?