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The short answer: To set up your Cosori Pro II 5.8Qt air fryer for first use, unbox everything, remove all packaging, wash the basket and tray with warm soapy water, dry completely, place the air fryer on a stable heat-proof surface with at least 5 inches of clearance, plug in, run a 5-minute empty preheat at 400°F to burn off any manufacturing residues, then let it cool before your first real batch.
If you’re new to air frying or just got your Cosori Pro II, the first-time setup is quick but important. It ensures your food tastes clean, your appliance lasts longer, and you avoid any surprises like smoke or weird smells. Here’s a clear, honest walkthrough based on the user manual and real-world usage, not lab tests.
Start by carefully unboxing your Cosori Pro II. You should find:
Check for any visible damage. If anything looks broken, contact Cosori support immediately. Remove all packaging materials, including any plastic films on the display and stickers on the exterior. Pay special attention to the inside of the basket: there might be a plastic liner or foam spacer. Also, look for a small silica gel packet often tucked in a corner. Remove it and discard it; it’s not edible.
One tip: keep the box for at least the first 30 days in case you need to return it. But that’s optional.
Even though the basket looks clean, it’s been through manufacturing, so there may be dust, oils, or residue. Wash the basket and crisper plate in warm soapy water. Use a soft sponge; avoid abrasive scrubbers that can scratch the non-stick coating. Rinse thoroughly and dry with a soft cloth or leave them to air dry. Do NOT put the basket or tray in the dishwasher unless the manual explicitly says it’s dishwasher safe. Most Cosori parts are hand wash recommended for longevity.
Wipe the interior cavity of the main unit with a damp cloth. Do not immerse the base in water or use harsh chemicals. Also, wipe the exterior with a dry or slightly damp microfiber cloth to remove fingerprints from the box.
Where you place the air fryer matters. It needs good airflow to work efficiently and safely. Follow these guidelines:
If you plan to use it under an upper cabinet, consider the steam that escapes during cooking. It can damage cabinets over time. Find a spot with some headroom.
This step is crucial. Manufacturing residues can cause a slight odor or even tiny smoke on first use. This is normal. Here’s what to do:
The fan will start, and you may notice a faint plastic or chemical smell. That’s okay. Let it run the full 5 minutes. If you see heavy smoke, turn it off immediately and check if you left any packaging inside. After 5 minutes, let it cool down completely (about 30 minutes) before washing the basket again? Actually, you don’t need to wash again; just wipe any moisture from the interior if present. But some people prefer a quick wipe with a dry paper towel.
To build confidence, you can do a quick test with a slice of bread or a few frozen fries. But if you want to skip that, it’s fine. A test run helps you see how the basket slides and how the controls work. For example, set it to 350°F for 3 minutes with a slice of bread. Watch it brown. That confirms the heating element and fan are working. Remember, the bread will be dry, so don’t expect it to be toast. It’s just a test.
Also, get familiar with the controls: the “Shake” reminder appears halfway through cooking, the “Keep Warm” function, and the presets. But for the first use, just focus on the basics.
After your first real cooking session, always let the air fryer cool completely before cleaning. Never use metal utensils inside the basket; use silicone or wood. Avoid cooking sprays with lecithin, as they can degrade the non-stick coating over time. Instead, brush oil on food or use a little oil in the basket. Also, don’t overfill the basket; leave space for air circulation. For best results, shake or flip food halfway.
If you’re wondering how this model compares to others, check out our honest guide on the best air fryers to see where it stands. We don’t do lab tests, but we look at user experiences and specs.
A: Not necessarily. The Cosori Pro II heats up fast, but for foods like chicken wings or frozen items, a preheat helps with crispiness. If you’re cooking something small like a single serving of fries, you can skip preheat. But for the first use, doing the 5-minute empty preheat is a must.
A: The manual says the basket and crisper plate are dishwasher safe, but hand washing is recommended to extend the life of the non-stick coating. Dishwasher detergent can be harsh over time. We recommend hand washing to be safe.
A: It’s normal. The heating elements and interior parts have protective oils from manufacturing. The 5-minute burn-off gets rid of those. If the smell persists after 2-3 uses, contact support. But usually, it’s gone after the first run.
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