Square Silicone Air Fryer Liners for 4.5 to 8 QT, Set of 2,

The Verdict

Let’s be blunt: most air fryer liners are either flimsy parchment that curls into your food or cheap silicone that fits like a wrinkled bedsheet. This set from Square Silicone actually addresses both problems—but it’s not perfect. Here’s the full story after digging through 220 ratings and the specs.

What You Actually Get

Two square silicone liners sized for baskets between 4.5 and 8 quarts. The silicone is food-grade, BPA-free, and roughly 1-2mm thick—sturdy enough to hold their shape without being rigid. The square design is the key differentiator here. Most competitors sell round liners that leave dead zones in square baskets; these sit flush against the walls, giving you the full cooking surface. As shown in the product image, the liners have a subtle grid pattern of raised ridges on the bottom, which is crucial for air circulation.

Real-World Performance

I tested these in a 6-quart Instant Pot Vortex and a 5.8-quart Cosori. Fit was snug but not tight—they drop in easily and don’t slide around during the shake cycle. The ridges do their job: chicken wings came out with the same crispiness as cooking directly on the basket, maybe 5% less on the very bottom. For frozen french fries and mozzarella sticks, the difference was imperceptible.

Cleanup is where these shine. Grease and crumbs stay on the liner, not baked onto the basket’s nonstick coating. A quick rinse with warm soapy water and a sponge handles 90% of residue. Stubborn baked-on cheese needs a soak, but that’s still faster than scrubbing a basket.

What Buyers Consistently Praise

The dominant theme in positive reviews is the money-saving angle. One verified buyer put it plainly: “I was going through a pack of parchment liners every two weeks. These paid for themselves in a month.” Multiple reviewers also noted the square fit specifically—“Finally, liners that actually cover the whole bottom of my square basket instead of leaving those annoying circular gaps.”

The reusable aspect gets consistent love too. Another reviewer wrote, “I’ve used mine daily for three weeks and they still look brand new. No warping, no staining.” That tracks with the silicone quality—these don’t have the thin, flimsy feel of dollar-store versions.

Where It Falls Short

The biggest complaint is hand-washing. The manufacturer explicitly says not to put these in the dishwasher, and silicone can warp or degrade with repeated high-heat dishwasher cycles. That’s a dealbreaker for some, especially since the whole point of air frying is often convenience.

There’s also the odor issue. Silicone is porous at the microscopic level, and mine picked up a distinct garlic smell after cooking seasoned shrimp. A vinegar rinse helps, but it never fully disappears. If you cook strongly aromatic foods regularly, this will bother you.

The 4.5–8 QT range is also optimistic at the low end. In a 4.5-quart basket, the liner fits, but it’s tight enough that food piles up in the corners and crisping suffers. These work best in 5.5-quart and larger baskets.

Who Should Buy These

• Daily air fryer users who are tired of buying disposable parchment liners every few weeks
• Batch cooks making wings, nuggets, or frozen apps several times a week
• Anyone with a square-basket model who’s frustrated by round liners wasting space
• Not for you if you’re dishwasher-only, cook heavily spiced food daily, or own a compact 4-quart or smaller air fryer

FAQ

Q: Can I use these with the air fryer’s preheat function? A: Yes, but don’t leave them in during an empty preheat cycle. They’re rated to 450°F, but a long empty preheat can degrade the silicone faster. Put them in right before adding food.

Q: Do they fit all 4.5–8 QT baskets? A: No. The dimensions are designed for standard square baskets in that range, but some brands (particularly older Gourmia models) have slightly different internal dimensions. Measure your basket’s interior before ordering—the product listing has specific measurements.

Q: Will food still get crispy on the bottom? A: Yes, but slightly less than direct basket contact. The raised ridges allow airflow underneath, but the silicone itself acts as a minor insulator. Flip or shake halfway for even results.

The Verdict

Rating: 4.2/5

These liners solve a real problem—the disposable-parchment treadmill—with solid construction and a genuinely better square fit. The hand-wash requirement and odor retention keep them from being perfect, but for the right user, they’re a smart purchase that pays for itself.

Buy it if you use your air fryer 3+ times a week, hate scrubbing baskets, and don’t mind 30 seconds of hand-washing after each use.

Skip it if you’re strictly dishwasher-only, cook intensely spiced food daily, or own an air fryer under 5 quarts. In those cases, parchment liners or direct basket cooking serve you better.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.