Can You Put Pyrex in an Air Fryer Find Out Here

Yes, you can safely put Pyrex in an air fryer if it’s labeled as oven-safe and the temperature stays below 450°F—always avoid sudden temperature changes to prevent cracking. Check for air fryer compatibility and preheat the Pyrex to ensure even cooking and protect the glass from thermal shock.

Key Takeaways

• Check for air fryer safety: Ensure your Pyrex is labeled oven-safe and fits without touching heating elements.
• Preheat when necessary: Avoid thermal shock by preheating Pyrex if your recipe requires it.
• Use lower temperatures: Cook at or below 350°F to prevent cracking from rapid heat changes.
• Avoid sudden temperature shifts: Never place cold Pyrex directly into a hot air fryer.
• Inspect for damage: Discard chipped or cracked Pyrex to reduce breakage risks during cooking.
• Opt for shallow dishes: Use low-profile containers for better air circulation and even cooking.

Can You Put Pyrex in an Air Fryer? The Definitive Answer

Air fryers have revolutionized modern kitchens, offering a quick, convenient way to achieve crispy, golden-brown results with minimal oil. From french fries and chicken wings to roasted vegetables and even baked goods, these countertop appliances are beloved for their speed and versatility. As home cooks experiment with new recipes and cooking methods, one common question arises: can you put Pyrex in an air fryer? After all, Pyrex is a household name in glassware—famous for its durability in ovens and microwaves—but does that extend to the high-heat, rapid-circulation environment of an air fryer?

The short answer is: it depends. While Pyrex is designed to withstand oven temperatures, air fryers operate differently, with intense, concentrated heat and airflow that can create unique stress points on glass. This article dives deep into the science, safety, and practicality of using Pyrex in an air fryer. We’ll explore the materials, temperature limits, best practices, and alternatives to help you make an informed decision. Whether you’re a seasoned air fryer enthusiast or just starting out, understanding the compatibility of your cookware is crucial to avoiding kitchen mishaps and maximizing your appliance’s potential.

Understanding Pyrex: What Makes It Special?

Before answering whether Pyrex can go in an air fryer, it’s essential to understand what Pyrex is made of and how it behaves under heat. The term “Pyrex” is often used generically, but there are actually two distinct types of glassware that carry the Pyrex name, and their thermal properties differ significantly.

Original Borosilicate Glass vs. Tempered Soda-Lime Glass

Historically, Pyrex was made from borosilicate glass, a type of glass that contains boron trioxide. This composition gives it exceptional thermal shock resistance—meaning it can handle rapid temperature changes (like going from freezer to oven) without cracking. Borosilicate glass can withstand temperatures up to 428°F (220°C) and is highly resistant to thermal expansion.

• Pros: Excellent thermal shock resistance, ideal for baking, freezing, and reheating.
• Cons: Less impact-resistant than tempered glass; more expensive to produce.

However, in the 1980s, Corning (the original manufacturer of Pyrex) sold the brand rights in different regions. In the United States, Pyrex is now primarily made from tempered soda-lime glass, which is chemically strengthened through a thermal tempering process. While this glass is more durable against physical impacts (like dropping), it has lower thermal shock resistance compared to borosilicate.

• Pros: More affordable, highly resistant to scratches and physical damage.
• Cons: More prone to cracking under rapid temperature changes; max safe temperature around 425°F (218°C).

Key takeaway: If you have older Pyrex (pre-1998 or labeled “borosilicate”), it’s more air fryer-friendly. Newer U.S. Pyrex (tempered soda-lime) is more fragile when exposed to sudden heat shifts.

How Pyrex Handles Heat in Traditional Ovens

In conventional ovens, heat is distributed evenly and gradually. Pyrex performs well here because it’s designed to heat slowly and uniformly. The glass expands at a predictable rate, reducing the risk of thermal shock. However, air fryers are different: they use a powerful convection fan to circulate hot air rapidly—sometimes at speeds that create localized hot spots on cookware.

For example, if you place a cold Pyrex dish directly into a preheated 400°F (204°C) air fryer, the outer surface heats up almost instantly while the inner layer remains cool. This uneven expansion can cause stress fractures, even in tempered glass. In contrast, an oven would heat the dish more gradually, minimizing this risk.

How Air Fryers Work and Why They’re Different

To understand the compatibility of Pyrex with air fryers, you must first grasp how air fryers operate. Unlike traditional ovens, which rely on radiant heat from heating elements, air fryers use rapid air circulation to cook food quickly and evenly.

Convection Heating and Airflow Dynamics

Air fryers are essentially compact convection ovens. They have a heating element at the top and a high-speed fan that pushes hot air down and around the food in a basket or on a tray. This process creates a Maillard reaction (the browning and crisping effect) with little to no oil. Typical air fryer temperatures range from 175°F to 400°F (80°C to 204°C), but the intensity of the heat is far greater than in a standard oven due to the forced airflow.

For example, a chicken breast in an air fryer at 375°F will brown faster than in an oven at the same temperature because the air is moving at high velocity, transferring heat more efficiently. This is great for food but potentially problematic for glassware like Pyrex, which relies on even, gradual heating.

Temperature Spikes and Thermal Shock Risk

Air fryers often preheat rapidly, and many models don’t allow for a “warm-up” period. If you place a cold Pyrex dish into a hot air fryer basket, the glass surface can heat up by 200°F or more in seconds. This rapid temperature change is the primary cause of thermal shock, which leads to cracks or even shattering.

Additionally, some air fryer models have heating elements that are close to the top of the basket. If the Pyrex dish is too tall or too close to the element, it may overheat in certain spots. For instance, a casserole dish with a high rim might experience uneven heating—top edges scorching while the center remains undercooked.

Practical tip: Always preheat your air fryer without the Pyrex inside. Then, place the dish in after the preheat cycle, or let it warm up gradually with the air fryer off for 2–3 minutes before starting the timer.

Can You Put Pyrex in an Air Fryer? The Verdict

So, can you put Pyrex in an air fryer? The answer is: yes, but with significant caveats and precautions. It’s not inherently unsafe if you follow proper guidelines, but the risk of breakage is higher than in a conventional oven due to the air fryer’s intense heating dynamics.

When It’s Safe to Use Pyrex in an Air Fryer

You can safely use Pyrex in an air fryer under the following conditions:

• Gradual temperature changes: Avoid placing cold Pyrex directly into a preheated air fryer. Let the dish warm up at room temperature or preheat it slightly (e.g., 2 minutes with the air fryer off).
• Low to moderate temperatures: Stick to air fryer settings below 375°F (190°C). Higher temperatures increase thermal stress.
• Shallow dishes only: Use low-profile containers like pie plates, casserole dishes, or baking dishes no taller than 2–3 inches. Tall dishes trap hot air and increase uneven heating.
• Check for damage: Never use Pyrex that has cracks, chips, or scratches. These weak points are more likely to fail under stress.
• Use oven mitts: Always handle hot Pyrex with heat-resistant gloves. The glass can retain heat long after the air fryer turns off.

Example: You can safely bake a small quiche in a 9-inch Pyrex pie dish at 350°F for 20 minutes, provided the dish was at room temperature and placed in after preheating.

When to Avoid Pyrex in an Air Fryer

There are several scenarios where using Pyrex is not recommended:

• Frozen dishes: Never put a frozen Pyrex casserole straight into the air fryer. Thaw it first or use a microwave-safe container.
• High-temperature cooking (above 375°F): Recipes like crispy wings or roasted nuts often require 400°F. At this temp, the risk of cracking rises significantly.
• Rapid temperature shifts: Don’t move a hot Pyrex dish from the air fryer to a cold surface (like a granite countertop) or add cold ingredients (like milk) to a hot dish.
• Older or damaged Pyrex: If your Pyrex is more than 10 years old or has signs of wear, it’s safer to use an alternative.

Real-world scenario: A user tried to reheat a frozen lasagna in a Pyrex dish at 400°F. The dish shattered within 5 minutes due to thermal shock. The lasagna was ruined, and the air fryer needed cleaning.

Best Practices and Safety Tips for Using Pyrex in Air Fryers

To minimize risk and ensure successful cooking, follow these best practices when using Pyrex in your air fryer.

Preheating and Temperature Management

Never skip preheating your air fryer, but do it without the Pyrex inside. Once preheated, turn off the air fryer and wait 2–3 minutes. This allows the internal temperature to stabilize and reduces the shock when you add the dish.

Use a thermometer to check the surface temperature of your Pyrex before adding it. If it’s cold, let it sit for 5–10 minutes. Alternatively, warm it in a conventional oven at 150°F for 5 minutes.

Pro tip: For baking, set the air fryer to 25°F lower than the oven temperature. For example, if a recipe calls for 350°F in the oven, use 325°F in the air fryer to account for faster cooking.

Choosing the Right Pyrex Dish

Not all Pyrex is created equal for air fryer use. Here’s what to look for:

• Low and wide: Choose dishes with a wide base and low sides (e.g., 8×8 inch baking dish, 9-inch pie plate).
• Oven-safe label: Ensure the dish is explicitly labeled “oven-safe” or “safe for conventional ovens.” Avoid “microwave-safe only” containers.
• No metal rims or handles: Some Pyrex lids have metal edges, which can spark or overheat in an air fryer.

Recommended models: Pyrex Simply Store 8×8 Baking Dish, Pyrex Deep 9×13 Casserole, or Pyrex 9-inch Pie Plate.

Monitoring and Maintenance

Always keep an eye on your Pyrex during cooking. If you notice any crackling sounds or visible cracks, stop the air fryer immediately and let the dish cool naturally.

After use, allow the Pyrex to cool on a dry, heat-resistant surface (like a wooden cutting board or trivet). Never place it in water or on a cold countertop while hot.

Clean with non-abrasive sponges and avoid extreme temperature changes during washing (e.g., hot dish in cold water).

Alternative Cookware Options for Air Fryers

If you’re concerned about Pyrex breaking or want to expand your air fryer cookware options, consider these safer and more efficient alternatives.

Oven-Safe Ceramic and Stoneware

Ceramic and stoneware dishes (like Le Creuset or Emile Henry) are excellent for air fryers. They heat evenly, retain heat well, and are more shock-resistant than glass.

• Pros: Beautiful presentation, excellent heat retention, safe up to 500°F.
• Cons: Heavier, more expensive, can chip if dropped.

Example: A ceramic quiche dish can handle 400°F in an air fryer without issue.

Silicone Baking Pans and Liners

Silicone is a fantastic option for air fryers. It’s flexible, non-stick, and can withstand temperatures from -40°F to 446°F (-40°C to 230°C).

• Pros: Lightweight, easy to clean, won’t crack or shatter.
• Cons: May need a metal tray for support; can absorb odors over time.

Tip: Use silicone cupcake molds for air fryer mug cakes or mini quiches.

Metal and Stainless Steel Pans

Many air fryers come with stainless steel baskets or trays. You can also use metal loaf pans, cake tins, or muffin tins (as long as they fit).

• Pros: Durable, excellent heat conduction, no risk of breakage.

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• Cons: May stick without oil; not transparent (can’t monitor browning easily).

Data table: Air Fryer Cookware Comparison

Cookware Type	Max Temp	Thermal Shock Risk	Best For	Notes
Pyrex (tempered)	425°F	High (if cold)	Low-temp baking, casseroles	Use with caution; preheat gradually
Pyrex (borosilicate)	428°F	Medium	Baking, roasting	Safer than tempered; rare in U.S.
Ceramic	500°F	Low	Casseroles, quiches	Heavy; avoid sudden cooling
Silicone	446°F	Very Low	Muffins, mug cakes	Flexible; may need support tray
Stainless Steel	500°F+	None	Roasting, baking	Non-stick spray recommended

Conclusion: Smart, Safe Use of Pyrex in Air Fryers

So, can you put Pyrex in an air fryer? Yes—but only if you take the right precautions. The intense, rapid heating of air fryers poses a higher risk of thermal shock than conventional ovens, especially with newer tempered Pyrex. However, by understanding the material differences, following temperature guidelines, and choosing the right dish, you can safely use Pyrex for low-to-moderate temperature cooking like casseroles, quiches, and baked goods.

Always prioritize safety: avoid cold starts, limit temperatures to 375°F or below, and use shallow, oven-safe dishes. When in doubt, opt for more air fryer-friendly alternatives like ceramic, silicone, or stainless steel. These materials offer better durability, faster cooking, and peace of mind.

Ultimately, your air fryer is a powerful tool—but it demands respect for heat dynamics and cookware compatibility. With the knowledge from this guide, you can experiment confidently, knowing how to protect your dishes, your appliance, and your kitchen. Whether you’re baking a dessert or reheating leftovers, smart cookware choices make all the difference. Happy air frying!

Frequently Asked Questions

Can you put Pyrex in an air fryer safely?

Yes, you can put Pyrex in an air fryer as long as it’s labeled oven-safe and preheated gradually. Avoid sudden temperature changes to prevent cracking or shattering.

Is it safe to use Pyrex in an air fryer for cooking?

Pyrex is generally safe for air fryer use if it’s designed for high heat and doesn’t touch the heating element. Always check the manufacturer’s guidelines for maximum temperature limits.

What types of Pyrex dishes can go in an air fryer?

Only use borosilicate or tempered Pyrex glass dishes labeled oven-safe. Avoid older or damaged Pyrex containers, as they’re more prone to thermal shock.

Can Pyrex in an air fryer handle high temperatures?

Most Pyrex withstands air fryer temps (up to 400°F/200°C), but rapid temperature shifts can cause breakage. Preheat the dish with the air fryer to minimize risk.

Are there risks to putting Pyrex in an air fryer?

The main risk is thermal shock—placing cold Pyrex in a hot air fryer. Always preheat the dish gradually and avoid stacking food directly from the fridge.

Can you put Pyrex in an air fryer without preheating?

It’s not recommended. Sudden heat exposure can crack Pyrex. For best results, preheat the air fryer with the Pyrex inside for 2-3 minutes before adding food.