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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want reusable, non-stick cups that hold their shape and pop brownies out clean, choose uxcell 18Pcs; if you need a big stack of disposable pre-cut liners you can toss after one messy batch, choose Acasimo Parchment Paper Sheets. Both live happily in an air fryer — they just solve the brownie problem in opposite ways.
• uxcell 18Pcs — biggest strength: 18 reusable silicone cups that are non-stick, flexible, and rated for 446°F down to -40°F, so they go from freezer to air fryer to dishwasher without a thought.
• uxcell 18Pcs — biggest trade-off: each cup is only 7 cm across (2.8 in open, 2 in at the base) and 3.2 cm tall, so it shapes what you bake — no flat sheet, no big square brownie slab.
• Acasimo Parchment Paper Sheets — biggest strength: 200 pre-cut 9x9 in sheets that lay flat, resist up to 450°F, and turn any air fryer basket or pan into a non-stick surface with zero cleanup.
• Acasimo Parchment Paper Sheets — biggest trade-off: they're single-use, so you're always reaching back into the box, and a flat sheet gives batter nothing to hold onto until it sets.
• Pick uxcell 18Pcs if you bake often and want portioned, reusable, dishwasher-safe brownie cups you never have to rebuy.
• Pick Acasimo Parchment Paper Sheets if you want maximum convenience and a flat, stick-free surface for the widest range of air fryer foods.
The uxcell 18Pcs set is a pack of 18 square silicone baking cups in pink, each 3.2 cm tall with a 7 cm open diameter tapering to a 5 cm base. That's a cupcake-and-muffin footprint, and it's exactly why they work so well for brownies in an air fryer: you get 18 individual portions, each with its own wall holding the batter in place while the hot air circulates around it. There's no liner to fold, no parchment to cut, and nothing to slide out of shape.
What stands out in the spec sheet is the temperature range — 446°F (230°C) down to -40°F (-40°C). That single number tells you the whole story of how you'd actually use these. Make brownie batter, pour it into the cups, bake, then let them cool and press gently with your fingers until each brownie pops out. The silicone is described as non-stick with no smells, no leaking dyes, and no chemical coatings, and cleanup is either a rinse in soapy water or a trip through the dishwasher. The same cups are rated for the fridge, freezer, microwave, and air fryer, so leftovers and pre-made batter aren't a separate container problem.
Acasimo Parchment Paper Sheets: Who It's For
Acasimo's offering is a box of 200 pre-cut square parchment sheets, each 9x9 inches. The material is 100% natural wood pulp with no fluorescents, described as non-toxic and meeting food safety standards, and the surface carries a food-grade silicone coating that resists water and oil so food releases cleanly. Heat resistance is stated at up to 450°F. For air fryer brownies, that flat sheet is the enabler: line the basket, pour batter, bake, lift the whole thing out, and throw the paper away. No scrubbing, no soaking.
The 9x9 size is the detail that matters most. It's designed to fit baking sheets and lay flat without measuring or cutting, and the box opening is made for easy access. That pre-cut format is the entire pitch — you're paying for time, not for a tool you keep. The sheets are also positioned as multi-purpose: oven, air fryer, microwave, steamer, heat press, freezing, and wrapping food. Breads, cakes, pizzas, rolls, cookies, vegetables, meats — the same sheet covers all of it.
Who should buy them? People who hate cleanup, cook in an air fryer several times a week, and want a liner that works for brownies one day and roasted vegetables the next. Who should skip them? Anyone who wants zero ongoing purchases — 200 sheets is a lot, but it does run out, and there's no washing and reusing here. Two practical notes from the sheet itself: always place food on the paper rather than using it bare against a heat source, never expose it to direct open flames, and store it somewhere cool and dry. Also, brownie batter is wet and loose, so a flat sheet won't contain it the way a cup does — you'll want a pan or basket edge to hold the shape.
Side-by-Side: Which Should You Choose?
• Best for portioned brownies → uxcell 18Pcs. 18 individual square cups mean 18 brownies with built-in structure.
• Best for flat, pan-style brownies → Acasimo Parchment Paper Sheets. A 9x9 in sheet lines a basket or pan and lifts out in one piece.
• Best for zero-cleanup baking → Acasimo Parchment Paper Sheets. Toss the sheet, wipe nothing.
• Best for freezer-to-air-fryer flexibility → uxcell 18Pcs. Rated from -40°F to 446°F, so prepped batter can go straight from freezer to basket.
• Best for mixed air fryer cooking → Acasimo Parchment Paper Sheets. The sheets are explicitly listed for oven, air fryer, microwave, steamer, freezing, and wrapping.
• Best for a crowd or party prep → uxcell 18Pcs. Enough cups to bake a full batch at once alongside family or friends.
• Best if you want nothing to wash or store → Acasimo Parchment Paper Sheets. 200 flat sheets in a compact box.
In my opinion, if air fryer brownies are the goal and you want them portioned, non-stick, and repeatable without buying liners again, I'd buy the uxcell 18Pcs. The 446°F-to-(-40°F) range, the flexible silicone release, and dishwasher-safe cleanup make it the more useful tool for anyone who bakes regularly — you get structure and reusability in one purchase. I'd pick the Acasimo Parchment Paper Sheets instead if convenience and a flat, stick-free surface across many kinds of food matter more than reusing anything. If price is the deciding factor for you, check the current price on Amazon before you commit, since that's the one thing I can't weigh in on here.
how to air fryer brownies
Mix your brownie batter, then either pour it into silicone cups like the uxcell 18Pcs or spread it on a lined pan using an Acasimo sheet, keeping the batter inside the basket's edges so it holds its shape. Bake in the air fryer, then let the brownies cool before releasing. uxcell cups pop out with a gentle press; parchment releases on its own once cooled.
how long to air fryer brownies
Timing depends on your air fryer and portion size, not on the liner you choose. Smaller brownies in individual cups set faster than one thicker pan-style batch on a flat sheet, so start checking early and add time in short increments. Neither the uxcell cups nor the Acasimo sheets change the bake time — they only change how the brownie releases and how you clean up.
how to make easy brownies in air fryer
The easiest route is pre-cut liners: an Acasimo sheet goes straight into the basket with no measuring or cutting, and you throw it away afterward. If you'd rather not rebuy liners, the uxcell 18Pcs cups are the low-effort reusable alternative — pour, bake, press to release, then rinse or dishwasher them.
how to air fry betty crocker brownies
Boxed brownie mix follows the same method: prepare the batter as directed, then bake it in the air fryer either in uxcell silicone cups for individual portions or on an Acasimo parchment sheet for a flatter batch. Keep the batter off bare metal and always place food on the paper rather than exposing it directly to the heat source, per the Acasimo usage notes.
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See also: QYH 300 vs Acasimo Parchment Paper Sheets: Air Fryer Bread, INFRAOVENS Parchment Paper Sheets vs Lekue Lékué Air Fryer, YUANYE 400PCS vs katbite Parchment Paper Sheets: Air Fryer