Best Parchment Liners for Cosori Air Fryer: The Right Shape, Size and Holes
Cosori basket floors are a specific shape and size, and a liner that’s too big, too round or has no holes can block airflow and leave food soggy. Matching the liner to your exact basket fixes that.
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Quick answer: for most Cosori basket air fryers, the best parchment liners are perforated square sheets with rounded corners, sized to leave a small gap around the edge of the basket floor. Measure the inside floor of your basket, then buy liners about half an inch to an inch smaller on each side. Choose unbleached or standard parchment rated above the highest temperature you cook at, and never run the air fryer with an empty liner inside.
Our picks at a glance
| Pick | Best for | Shape |
|---|---|---|
| Perforated square parchment liners | Most Cosori basket models | Square, rounded corners |
| Bowl-style square parchment liners with sides | Saucy or sticky foods | Square with raised edges |
| Unbleached perforated parchment liners | People who prefer unbleached paper | Square or round |
| Reusable perforated silicone-coated mat | Cutting down on paper waste | Square, trim to fit |
Why liners for a Cosori need to match the basket
Air fryers cook by pushing hot air down and around the food, then up through the floor of the basket. Anything that covers that floor changes how the appliance cooks. Most of the problems people have with liners come from three mismatches.
- Shape. Many Cosori basket models use a squarish basket with rounded corners rather than a round one. A round liner in a square basket leaves bare corners and wastes cooking space, while an oversized round liner can crumple up the sides. Check your basket before you buy, because dual-basket and oven-style models are shaped differently.
- Size. A liner that covers the whole floor and climbs the walls blocks the gap where air needs to move. You want a little bare border all the way around.
- Holes. Solid parchment turns the basket into a shallow tray. Fries and wings steam in their own moisture instead of crisping. Perforated liners let air through while still catching most of the drips and crumbs.
Cosori sells its own accessories for some models, and the manual for your model is the best source for what the manufacturer allows in the basket. If your manual says anything about liners or paper, follow it over general advice.
What to look for
The right size for your basket
Pull out the basket and measure the flat inside floor from wall to wall, not the top rim. Liner listings usually give the sheet size in inches. A sheet that is roughly half an inch to an inch smaller than your floor on each side leaves room for airflow and still catches mess. Listings that name compatible Cosori capacities can help, but measuring is more reliable because basket sizes vary between models with similar quart ratings.
Perforations spread across the sheet
Look for holes across the whole sheet, not just a few in the center. Evenly spaced perforations give more even browning. Solid sheets are fine for baking a small cake or cooking something wet in the basket, but not for anything you want crisp.
A temperature rating above your hottest setting
Parchment has a maximum temperature printed on the box. Check it against the highest temperature you actually use on your Cosori and leave some margin. If paper browns heavily or gets brittle, it’s running close to its limit.
Flat sheets or bowl-shaped liners
Flat sheets sit low and let more air through. Bowl-shaped liners with folded sides hold marinades and cheese drips better, but those sides block some of the airflow around the food, so expect a little less crisping.
Unbleached or bleached
Both are common. Unbleached parchment is brown and simply skips the whitening step. Many parchment papers are coated with silicone for release; if materials matter to you, read the manufacturer’s description of the coating rather than relying on a “non-toxic” label.
Our picks
Best overall
Perforated square parchment liners with rounded corners
A flat, perforated square matches the shape of many Cosori baskets and lets air move through the floor, so fries and nuggets still crisp while cleanup stays quick.
- Covers most of the floor without blocking airflow
- Sold in sizes listed by the inch
- Large packs are common
- Measure first; “fits Cosori” listings don’t cover every model
- Light sheets can lift if food doesn’t weigh them down
- Single use
Best for messy foods
Square bowl-style parchment liners with raised sides
The folded edges hold glazes, cheese and marinade inside the liner, so less of it bakes onto the basket.
- Catches sauces and drips
- Easy to lift food out in one go
- Useful for reheating leftovers
- Sides reduce airflow, so less crisping
- Many are unperforated
- Tall sides can touch the basket walls in smaller models
Best unbleached
Unbleached perforated parchment liners
The same airflow-friendly design as standard perforated sheets, in brown parchment that skips the bleaching step.
- Available in square and round
- Works the same as white parchment
- Fewer size options
- Check the temperature rating on the pack
- Read the coating details if materials matter to you
Best reusable
Reusable perforated nonstick mat, trim-to-fit
If you go through a pack of paper a month, a washable perforated mat cut to your basket floor can replace most of it.
- Cut once to match your basket
- Washes in the sink
- Less waste
- Needs washing after every use
- Check the temperature rating
- Can stain or hold odors over time
Building out a Cosori setup? Our guide to the best accessories kit for a Cosori air fryer covers racks, pans and skewers. If you’d rather skip paper entirely, a silicone pot for the air fryer handles saucy foods, and an oil sprayer made for air frying helps food crisp without pooling oil on the liner.
How to use parchment in an air fryer safely
- Never preheat with an empty liner. The fan can lift loose paper into the heating element. Add the liner only when you add the food, and make sure the food weighs it down.
- Keep it below the rim. Paper should sit on the basket floor, well away from the heating coil above.
- Trim if needed. A sheet that rides up the walls can be cut down with scissors.
- Skip liners for very light foods. Thin slices of bread or a few leaves of kale may not hold paper down.
- Watch for scorching. If the paper edges darken a lot, lower the temperature or cut the sheet smaller.
Questions people ask
Can you put parchment paper in a Cosori air fryer?
Parchment is commonly used in Cosori baskets, as long as food sits on top to hold it down and the sheet doesn’t block the airflow around the edges. Check your model’s manual for any specific guidance.
What size liner fits a 5.8-quart Cosori?
It depends on the exact model, so measure the flat inside floor of your basket. Then pick a perforated square liner about half an inch to an inch smaller on each side.
Do air fryer liners make food less crispy?
Solid liners and liners with tall sides can, because they block air from moving under the food. Flat, perforated liners affect crisping much less.
Should I use round or square liners in a Cosori?
Match the liner to your basket shape. Many Cosori baskets are square with rounded corners, so square liners usually cover more of the cooking area.
Can parchment paper catch fire in an air fryer?
Loose paper that blows up into the heating element can scorch or burn, which is why you should never run the air fryer with an empty liner. Keep the paper weighed down and below the basket rim.