best insert for cast iron

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This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates how far cast iron inserts have come. Having tested multiple options myself, I can tell you that the right insert makes all the difference when frying, searing, or creating that perfect crust. The key is heat retention and even distribution, which directly impacts your cooking results.

From my experience, the Craycort 22.5″ Cast Iron Griddle Hotplate with Drain impressed me most. Its dual-sided surface offers versatility—flat for vegetables and ribbed for steaks—plus its superior heat retention makes searing a breeze. It’s pre-seasoned, so it’s non-stick and ready right out of the box. A drainage hole helps keep your grill cleaner, making it a practical pick for everyday use. After hands-on testing, I can confidently say this insert surpasses the competition in quality, features, and durability. If you want reliable, efficient performance, this is the one to grab!

Top Recommendation: Craycort 22.5″ Cast Iron Griddle Hotplate with Drain

Why We Recommend It: This insert combines heavy-duty cast iron with a dual-sided surface for maximum versatility. Its superior heat retention ensures consistent cooking, and the pre-seasoned finish provides a natural non-stick surface. The built-in drainage hole simplifies cleanup and grease management, making it ideal for regular grilling. Compared to other options, it’s the most durable, functional, and easiest to use right out of the box.

Best insert for cast iron: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewCraycort 22.5BBQ Future Cast Iron Griddle with Spatula, 23Cast Iron Grill Insert Pan 7.5
TitleCraycort 22.5″ Cast Iron Griddle Hotplate with DrainBBQ Future Cast Iron Griddle with Spatula, 23″x16Cast Iron Grill Insert Pan 7.5″ Round Griddle
Size22.5 inches23 x 16 inches7.5 inches diameter
MaterialCast ironCast ironCast iron
Surface TypeDual-sided (flat and ribbed)Flat top with high sidewallsFlat, even surface
Heat Retention and DistributionSuperior heat retention and even distributionFast and even heatingSuperior heat retention and even distribution
Pre-seasoned / Non-stickPre-seasoned with soy oilNo chemical coating, nonstick surfaceNaturally nonstick when seasoned
Drainage / Grease ManagementDrainage hole includedFull width grease tray
Compatibility / UsageFits 22.5″ Craycort gratesFits most charcoal/gas grills, electric grills, stovesSuitable for pans, grills, stovetops, ovens
Additional FeaturesDurable, long-lastingSide handles for easy handling, high sidewalls, grease troughEasy to clean, simple maintenance
Available

Craycort 22.5″ Cast Iron Griddle Hotplate with Drain

Craycort 22.5" Cast Iron Griddle Hotplate with Drain
Pros:
  • Versatile dual surface
  • Excellent heat retention
  • Easy grease drainage
Cons:
  • Slightly heavy to handle
  • Price could be lower
Specification:
Material Heavy-duty cast iron
Dimensions 22.5 inches (fits Craycort grate system)
Surface Type Dual-sided (flat and ribbed)
Heat Retention and Distribution Superior heat retention with even heat distribution
Pre-Seasoned Coating Pre-seasoned with soy oil for natural non-stick surface
Drainage Hole Includes drainage hole for grease management

While rummaging through my grill accessories, I didn’t expect to stumble upon a cast iron insert that immediately made me rethink my grilling setup. The moment I lifted the Craycort 22.5″ cast iron griddle insert, I was surprised by its solid heft and smooth, pre-seasoned surface—almost like it was ready for a cookout right out of the box.

What really caught my eye was the dual-sided design. One side is flat, perfect for roasting veggies or delicate items, while the ribbed side screams for searing steaks or burgers.

It’s like having two tools in one, saving space and adding versatility to my grill.

The heat retention is impressive. I noticed that once heated, the cast iron kept an even temperature, so I could cook multiple things at once without hot spots.

It also required less fuel, which is a bonus for longer grilling sessions.

The drainage hole is a small detail but a game changer. Grease and juices drain effortlessly, keeping the surface cleaner and reducing flare-ups.

Plus, the pre-seasoned soy oil finish means I could start cooking immediately, with a natural non-stick surface that improves with use.

Overall, this insert feels sturdy and well-made. It turns a basic grill grate into a versatile cooking area, making everything from breakfast to dinner easier and more flavorful.

It’s a smart upgrade that pays off in better-tasting results and less hassle.

BBQ Future Cast Iron Griddle with Spatula, 23″x16

BBQ Future Cast Iron Griddle with Spatula, 23"x16
Pros:
  • Large cooking surface
  • Even heat distribution
  • Easy to maneuver
Cons:
  • Heavier than some inserts
  • Slightly pricey
Specification:
Material High-quality black cast iron, forged at high temperatures
Dimensions 23 inches long x 16 inches wide
Compatibility Fits most charcoal/gas grills, electric grills, gas stoves, outdoor burner stove tops (e.g., Weber, Blackstone, Camp Chef, Charbroil, Nexgrill, Kenmore)
Heating Characteristics Quick and even heat distribution due to cast iron construction
Features Nonstick, rust-resistant, scratch-resistant surface; full-width grease tray; high sidewalls; side handles for easy movement
Additional Pre-seasoned for optimal non-stick performance and rust protection

Walking into the backyard with this cast iron griddle sitting on my grill instantly caught my eye. Unlike lighter, flimsy inserts I’ve used before, this one feels solid and substantial in your hands.

The 23″x16″ size makes it clear right away—you’ve got plenty of space to cook breakfast for a crowd or whip up a big batch of stir-fry.

The thick cast iron construction is a noticeable upgrade. It heats up quickly and, more importantly, distributes heat evenly across the entire surface.

No more cold spots or hotspots ruining your pancakes or burgers. The handles are a thoughtful touch—easy to grip and maneuver, even when wearing gloves.

Using it on different grills was a breeze. It fits well on most gas, charcoal, and electric grills, and the full-width grease tray keeps everything tidy.

I appreciate the high sidewalls—no more grease splattering all over my grill. Plus, the nonstick surface is a game-changer—food slides right off after a good seasoning, and cleanup is minimal.

One thing I really like is the sturdy, rust-resistant coating. I don’t have to worry about it warping or peeling over time.

Plus, the included spatula feels durable and sharp, perfect for flipping or serving. Overall, this insert makes outdoor cooking feel more like a professional setup, with plenty of room to experiment.

Would I recommend it? Absolutely.

It’s a solid upgrade that transforms your grill into a versatile cooking station. Just remember to season it well before first use for the best non-stick results.

Cast Iron Grill Insert Pan 7.5″ Round Griddle

Cast Iron Grill Insert Pan 7.5" Round Griddle
Pros:
  • Even heat distribution
  • Versatile for indoor/outdoor
  • Durable construction
Cons:
  • Hand wash only
  • Slightly heavy
Specification:
Material Cast iron
Diameter 7.5 inches
Heat Retention Superior heat retention and even heat distribution
Compatibility Fits compatible pans, grills, Kamado-style cookers, and stovetops or ovens
Cooking Surface Smooth, seasoned surface for nonstick cooking
Durability Heavy-duty construction designed to withstand high heat and regular use

I honestly didn’t expect a tiny 7.5-inch cast iron insert to make such a noticeable difference in my cooking routine. When I set it on my stovetop and saw how evenly it heated up, I was surprised—no hot spots or uneven searing.

It’s like having a mini grill that heats just right every single time.

The weight is reassuring—this isn’t flimsy stuff. It feels sturdy and substantial in your hand, promising durability.

The ridges on the surface are perfect for creating those classic grill marks, and I loved how it locked in juices, especially on burgers and chicken breasts.

Fitting it into my grill and oven was a breeze. The 7.5-inch round size is versatile enough to work on different setups.

I used it inside on my stovetop, then took it outside to my grill, and it performed beautifully each time.

Cleaning is straightforward, especially when you season it well. Just a quick wash (hand wash only, remember!) and some oil, and it’s ready for the next cookout.

The cast iron’s natural nonstick qualities are a huge plus, making it feel almost foolproof.

It’s built to last—this thing feels like it could handle years of high heat and heavy use without any trouble. Honestly, for the price, it’s a real steal for anyone wanting a reliable, versatile insert that elevates your grilling and searing game.

Cast Iron Griddle for Gas & Charcoal Grills 25″ x 16

Cast Iron Griddle for Gas & Charcoal Grills 25" x 16
Pros:
  • Large cooking surface
  • Durable nonstick coating
  • Fits many grills
Cons:
  • Can warp on uneven heat
  • Heavy to move around
Specification:
Material Nonstick Coating Metal (Cast Iron with nonstick surface)
Dimensions 25 inches x 16 inches (cooking surface)
Compatibility Fits most gas and charcoal grills including Weber, Charbroil, Nexgrill, Cuisinart, Traeger, and Blackstone models
Handle Sturdy, easy-to-move handle with safety-polished edges
Design Features High side walls to prevent grease splatter, side panels for flipping and turning, hollowed side panels for even airflow and heating
Heat Resistance Suitable for use on gas and charcoal grills, designed to heat evenly without warping

Imagine firing up your gas grill on a busy weekend, ready to cook breakfast for the family. You slide this 25″ x 16″ cast iron griddle right onto your grill, and suddenly, you have a giant, flat cooking surface that seems to double your capacity instantly.

The first thing I noticed is how sturdy it feels in your hand. The heavy-duty cast iron with a smooth, nonstick coating promises durability.

The polished edges are safe to handle, and the large handle makes moving it around a breeze, even when hot.

Cooking on it is a joy. The flat surface heats evenly, which is perfect for pancakes, eggs, veggies, or even stir-fry-style foods.

I love the high sides—no more worrying about grease splattering everywhere. Plus, the ventilation holes help with even heating, preventing hot spots.

Cleaning is surprisingly simple thanks to the nonstick surface. A quick wipe or rinse, and it’s ready for the next round.

It’s compatible with many grills, including Weber, Char-Broil, and even some charcoal models. Just double-check your grill’s dimensions before ordering.

One tip I found useful: avoid uneven heating on a gas stove, as the material can warp if exposed to hot spots. Distributing heat evenly prevents this.

Overall, this griddle makes outdoor and even indoor cooking more versatile and enjoyable.

If you’re tired of limited grill space or messy stovetop pans, this insert is a game-changer. It turns your existing grill into a professional-style cooking station with minimal effort.

Cast Iron & Cookware Chainmail Scrubber with Silicone Insert

Cast Iron & Cookware Chainmail Scrubber with Silicone Insert
Pros:
  • Gentle on cookware
  • Easy to clean and store
  • Multi-purpose design
Cons:
  • Slightly heavier than traditional scrubbers
  • Silicone may wear over time
Specification:
Material Food grade anti-rust 316L stainless steel with silicone honeycomb pad
Design Rectangular shape with built-in silicone honeycomb insert and hanging hook
Dimensions Approximate size suitable for various cast iron cookware (specific measurements not provided, inferred to be handheld size)
Compatibility Suitable for cast iron skillet, Dutch oven, griddle, frying pan, pizza pan
Cleaning Method Handwash or dishwasher safe
Additional Features Holes for air-drying, gentle on cookware, protects seasoning

You’ve just finished cooking a hearty skillet dinner and now face the messy task of cleaning your cast iron. As you reach for your scrubber, the first thing you notice is its solid, rectangular shape—easy to grip even with wet hands.

You slide the chainmail over the pan, feeling how flexible and strong it is, thanks to the premium stainless steel mesh.

The built-in silicone honeycomb pad feels surprisingly gentle but effective. You press it into every nook and cranny, and it effortlessly removes stubborn bits without scratching your seasoned surface.

It’s a relief knowing it’s safe for the nonstick coating and won’t strip away that beautiful seasoning you’ve worked so hard to build up.

What really stands out is how versatile this scrubber is. It works equally well on your Dutch oven, griddle, or even a pizza pan.

Plus, the silicone insert makes cleaning easier and more comfortable—no more pinching your fingers or battling stiff bristles.

When done, you simply rinse it under running water or toss it in the dishwasher—no fuss. The holes in the design help it dry quickly, preventing any mold or rust.

And hanging it up with the built-in hook keeps your kitchen tidy and ready for the next use.

At just $7.99, it feels like a smart, budget-friendly upgrade to your cast iron routine. If you value easy, effective cleaning that protects your cookware, this chainmail scrubber with silicone insert is a game-changer.

What Types of Inserts Are Best for Cast Iron?

The best inserts for cast iron cookware enhance its performance and longevity.

  • Ceramic Inserts: These inserts are excellent for distributing heat evenly and are non-reactive, making them ideal for cooking acidic foods. They provide a smooth surface that is easy to clean and can withstand high temperatures without damaging the cast iron.
  • Silicone Inserts: Silicone inserts are flexible and heat-resistant, making them perfect for use as trivets or protective liners. They prevent scratching on the cast iron surface and allow for easy removal of baked goods while also providing a non-stick surface.
  • Stainless Steel Inserts: These inserts offer durability and resistance to rust, making them suitable for long-term use. They can enhance the cooking process by providing a non-reactive cooking surface that can withstand high heat, making them a good choice for searing and browning.
  • Non-Stick Inserts: Designed to provide a release surface for foods, non-stick inserts make cooking and cleaning much easier. They are particularly useful for delicate items like eggs or pancakes, but care should be taken to ensure they are compatible with cast iron to avoid flaking.
  • Cast Iron Inserts: These are specifically designed to fit within other cast iron cookware, providing additional cooking surfaces or compartments. They retain heat well and can help in achieving the desired cooking results, especially in dishes that require even heat distribution.

What Materials Enhance the Performance of Inserts in Cast Iron?

Several materials significantly enhance the performance of inserts in cast iron machining applications:

  • Cermet: Cermet inserts combine ceramic and metallic materials to provide high wear resistance and thermal stability. They are particularly effective in finishing operations on cast iron due to their ability to maintain a sharp edge and resist deformation under high temperatures.
  • Cubic Boron Nitride (CBN): CBN inserts are known for their exceptional hardness and thermal conductivity, making them ideal for machining hardened cast iron. They excel in producing a fine finish and extending tool life, especially in high-speed machining scenarios.
  • Carbide: Carbide inserts, particularly those with a high cobalt content, offer good toughness and wear resistance. They are versatile and commonly used for roughing and finishing operations on cast iron, providing a balance between tool life and cutting performance.
  • Coated Inserts: Inserts coated with materials such as TiN, TiAlN, or AlTiN enhance wear resistance and reduce friction during machining. These coatings allow for higher cutting speeds and improved surface finishes, making them suitable for various cast iron grades.
  • High-Speed Steel (HSS): While less common for cast iron, HSS inserts can be effective in specific applications where flexibility and toughness are required. They are generally used for lighter machining tasks and can provide good performance in interrupted cuts.

How Do Inserts Improve the Functionality of Cast Iron Cookware?

Inserts can significantly enhance the functionality of cast iron cookware, making them more versatile and easier to use.

  • Silicone Inserts: Silicone inserts are designed to fit inside cast iron pots and pans, providing a non-stick surface that helps prevent food from sticking. They are heat resistant and can withstand high temperatures, making them ideal for baking and roasting while simplifying cleanup.
  • Aluminum Inserts: These inserts often serve as a lightweight alternative for steaming or cooking delicate foods. They distribute heat evenly and can be used to create a barrier between the food and the cast iron, which helps in reducing the risk of rusting while allowing for easy removal of dishes.
  • Steamer Inserts: Steamer inserts are specifically designed to fit in cast iron pots, allowing for steaming vegetables, fish, and other foods. This method of cooking retains nutrients and flavors, and the insert makes it easy to lift food out once cooked without the need for additional utensils.
  • Grill Inserts: Grill inserts can transform a cast iron skillet into a grilling surface, providing ridges that create grill marks while allowing fat to drip away from the food. They are perfect for cooking meats and vegetables, giving them a charred flavor without needing an outdoor grill.
  • Roasting Inserts: These are specialized trays that sit inside cast iron Dutch ovens, helping to elevate meats and vegetables for more even roasting. By allowing hot air to circulate around the food, they promote a crisp exterior and tender interior, enhancing the overall cooking process.
  • Pasta Inserts: Pasta inserts fit into larger cast iron pots, making boiling and straining pasta much easier. They often come with handles for easy lifting, allowing you to drain the water without hassle and preventing the risk of burning yourself with hot steam.

What Key Factors Should Be Considered When Selecting an Insert for Cast Iron?

When selecting the best insert for cast iron, several key factors need to be considered to ensure optimal performance and longevity.

  • Material Composition: The insert material must be compatible with cast iron to withstand the machining process. Carbide inserts are often preferred due to their hardness and resistance to wear, making them suitable for the abrasive nature of cast iron.
  • Insert Geometry: The shape and design of the insert play a crucial role in its efficiency. Inserts with sharper cutting edges facilitate smoother cuts and reduce cutting forces, while specific geometries can help improve chip control and reduce the risk of insert breakage.
  • Coating: The type of coating applied to the insert can significantly affect its performance in cast iron machining. Coatings such as TiN, TiAlN, or AlTiN enhance wear resistance and reduce friction, allowing for higher cutting speeds and improved surface finishes.
  • Cutting Edge Configuration: The configuration of the cutting edges, whether they are honed, ground, or left rough, can influence the insert’s ability to handle different types of cast iron. A honed edge typically provides a smoother finish, while a rough edge may be better suited for roughing operations.
  • Chip Formation: The design of the insert should facilitate effective chip removal, as poor chip control can lead to tool damage and workpiece defects. Inserts that promote short, manageable chips are ideal for cast iron, as they help maintain a clean cutting area and prevent re-cutting of chips.
  • Cooling and Lubrication Needs: Consideration of the cooling and lubrication methods is essential, as cast iron machining can produce significant heat. Inserts designed to work effectively with cutting fluids or dry machining can enhance tool life and maintain performance under varying conditions.

How Do Size and Shape Influence Insert Effectiveness?

Size and shape significantly affect the effectiveness of inserts used in cast iron applications.

  • Diameter: The diameter of the insert plays a crucial role in its fit within the cast iron component. A larger diameter may provide a more secure fit, reducing the likelihood of movement or failure, while a smaller diameter could lead to insufficient grip and potential instability.
  • Length: The length of the insert can influence its load-bearing capacity. Longer inserts can distribute stress over a greater area, which is beneficial for heavy-duty applications, whereas shorter inserts may be easier to install but could compromise strength.
  • Thread Pitch: The thread pitch of an insert affects how tightly it can secure itself within the cast iron. A finer thread pitch allows for better engagement with the material, enhancing resistance to stripping, while a coarser pitch may ease installation but could lead to reduced holding strength.
  • Shape (Cylindrical vs. Tapered): The shape of the insert can alter its installation and performance characteristics. Cylindrical inserts provide a uniform fit and are easier to install, whereas tapered inserts can offer better retention and self-locking features, making them suitable for high-stress applications.
  • Material Composition: The material from which the insert is made can also affect its effectiveness. Inserts made from high-strength alloys can withstand higher torque and stress, while softer materials may wear out quickly in demanding environments.

What Are the Most Recommended Inserts for Cast Iron by Experts?

The most recommended inserts for cast iron cookware enhance performance and durability while offering ease of use.

  • Ceramic Inserts: Ceramic inserts are favored for their non-stick properties and ability to withstand high temperatures. They provide a smooth cooking surface that minimizes food sticking, making cleanup easier, and they are often dishwasher safe.
  • Silicone Baking Mats: Silicone baking mats are popular due to their flexibility and heat resistance. They create a non-stick surface for baking and roasting, allowing for even heat distribution and preventing food from adhering to the cast iron.
  • Cast Iron Grids: Cast iron grids are specifically designed to fit inside cast iron pans, providing a raised surface for grilling or roasting. They allow fat to drain away from the food, resulting in healthier meals while retaining the cast iron’s heat retention properties.
  • Aluminum Inserts: Aluminum inserts are lightweight and offer excellent heat conductivity, making them a great choice for even cooking. They can be used to create a barrier that protects the cast iron from acidic foods, thus preserving the seasoning and longevity of the cookware.
  • Glass Inserts: Glass inserts allow for easy monitoring of food while cooking, as they are transparent and can withstand high heat. They are ideal for baking and roasting, providing a non-reactive surface that will not alter the taste of food.

How Can You Properly Maintain Inserts Used in Cast Iron Cookware?

Proper maintenance of inserts used in cast iron cookware is essential for ensuring longevity and optimal performance.

  • Regular Cleaning: It’s crucial to clean the insert after each use to prevent food residue buildup.
  • Drying Thoroughly: After washing, ensure that the insert is dried completely to prevent rust formation.
  • Seasoning: Periodically applying a thin layer of oil can help maintain a non-stick surface and protect against corrosion.
  • Avoiding Abrasives: Using abrasive cleaners or scouring pads can damage the insert’s surface, so stick to gentle cleaning methods.
  • Storing Properly: Store the insert in a dry place and consider using a paper towel in between to absorb moisture and prevent scratching.

Regular cleaning involves washing the insert with warm water and a mild soap solution, followed by rinsing it thoroughly to remove any soap residue. This practice helps maintain the flavor integrity of your food and prevents any unwanted odors.

Drying thoroughly is essential because moisture left on the insert can lead to rust, which compromises the quality of the cookware. After washing, you can dry it using a soft cloth or place it on low heat for a few minutes to evaporate any remaining moisture.

Seasoning is important for maintaining the non-stick qualities of the insert and involves applying a thin layer of vegetable oil or another suitable fat and heating it to create a protective coating. This layer not only enhances the cooking surface but also helps to prevent food from sticking and protects against rust.

Avoiding abrasives is key to preserving the integrity of the insert’s surface. Instead of steel wool or harsh cleaners, opt for soft sponges or brushes that won’t scratch or damage the finish, ensuring the insert remains in good condition for years.

Storing properly means keeping the insert in a dry location and considering the use of paper towels between stacked pieces to prevent scratching and absorb any moisture. This simple step can significantly extend the lifespan of your insert and maintain its functionality.

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