How to use an air fryer the right way, from first-time setup and preheating to shaking food, avoiding overcrowding and cooking frozen food.
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Using an air fryer comes down to a handful of habits: do a one-time setup wash and burn-off run, preheat only when a recipe actually calls for it, use little to no oil, shake or flip food partway through cooking, and never crowd the basket. Master those five things and you will get crisp, evenly cooked results from your first attempt, which is more than most beginners manage in their first week.
This guide walks through every step in order, starting with what to do the moment you unbox a new fryer through to handling frozen food safely. For a ranked list of the strongest models if you are still shopping, see our best air fryers guide. If you already own one and just need the basics, skip ahead to whichever section matches your question.
One thing worth knowing up front: an air fryer is really a small, powerful convection oven. It cooks by circulating very hot air around food at high speed rather than submerging it in oil, which is why it crisps food with a fraction of the oil a deep fryer needs.
Before the first use, remove all packaging, stickers and twist-ties from inside the basket and drawer, including any protective film on the control panel. Wash the basket, crisper plate and drawer in warm soapy water, rinse, and dry thoroughly. Wipe the interior of the main housing with a damp cloth; never submerge the main unit, since that is where the heating element and electronics live.
Many manufacturers recommend a short empty “burn-off” run after unboxing, typically 10 to 15 minutes at around 400°F (200°C) with nothing in the basket. This clears any manufacturing residue or packaging smell and is normal; a faint odor or light smoke on this first run is expected and will not happen again. Open a window or run an extractor fan during this step. Check your specific model’s manual for its recommended first-use procedure, since this step varies slightly by brand.
Once that is done, place the fryer on a stable, heat-resistant surface with several inches of clearance on all sides and above for the hot air vent. Air fryers exhaust hot air, so do not push one directly against a wall, under a cabinet, or next to anything you would mind getting warm.
Preheating gets more attention than it deserves. For thin or quick-cooking items, like frozen fries, nuggets or vegetables, skipping preheating barely changes the result, since the food is in the basket for such a short time that the few minutes of warm-up barely register. For these everyday items, you can usually load the basket straight into a cold fryer and add a minute or two to the cook time if needed.
Preheating matters more for foods where a quick sear or immediate crisp matters, such as breaded items, battered foods or anything where you want the outside to set fast before the inside overcooks. A short preheat of three to five minutes at the cooking temperature gives these foods an immediate blast of heat that locks in a crisp exterior faster. Baked goods like small cakes or pastries inside an air fryer also benefit from a brief preheat for more even rising and browning.
If a recipe specifically calls for preheating, follow it, since the timing in that recipe was likely tested with a preheated basket. If you are improvising or cooking simple everyday food, do not feel obligated to preheat every single time; it adds a few minutes for a marginal benefit on most basic meals.
One of the biggest adjustments for beginners coming from deep frying is how little oil an air fryer actually needs. For many foods, particularly anything with natural fat or moisture like chicken thighs, sausages or pre-breaded frozen items, no added oil is necessary at all. For foods that benefit from a crisp finish, like fresh-cut potato wedges or vegetables, a light coating is enough, typically applied as a spray or with a teaspoon or two tossed through the food rather than poured.
Using too much oil is a common mistake that actually works against you. Excess oil pools at the bottom of the basket, can smoke as it overheats, and contributes to grease buildup that makes the fryer harder to clean and shortens the life of the non-stick coating. A light, even coating beats a heavy pour every time. If you use a spray bottle or oil mister, that is generally a better way to apply a thin, even layer than pouring oil directly into the basket.
Avoid canned aerosol cooking sprays directly in a non-stick basket if your manufacturer warns against it; some propellants and additives in aerosol sprays can damage non-stick coatings over repeated use. A refillable oil mister filled with your own oil is the safer long-term habit.
Because hot air circulates around the basket rather than fully submerging food the way oil does, the side of the food facing up or against the basket gets slightly more direct airflow than the side resting against other pieces or the basket floor. Shaking or flipping the basket partway through cooking redistributes food so every piece gets even exposure, which is the difference between fries that are uniformly golden and fries with pale, soft patches.
As a general habit, shake or toss small items like fries, nuggets or vegetables once or twice during the cook, roughly at the halfway mark and again with a few minutes left if the total time is long. For larger single items like a chicken breast or a fillet, flip once partway through rather than shaking, since shaking a basket with a single large piece does little. Most fryers with a drawer-style basket let you simply pull the drawer out, shake it side to side, and slide it back in without pausing the cook for more than a few seconds.
Not every food needs shaking. Baked goods, anything in a dish or pan insert, and delicate items that could fall apart are best left alone and simply checked rather than tossed.
Overcrowding is the single most common reason an air fryer produces disappointing, soggy results. Hot air needs space to circulate around and underneath each piece of food. Pile food two or three layers deep and the pieces in the middle steam in trapped moisture instead of crisping, no matter how good the fryer is.
The practical rule is to aim for a single, loosely arranged layer with small gaps between pieces, not a tightly packed single layer either. If food only fits by stacking or pressing it down, that is a sign you need to cook in two batches rather than one. Cooking in batches takes a few extra minutes but consistently produces better results than forcing everything in at once, and it is also why basket size matters when buying a fryer in the first place; see our guide on what size air fryer you need if you regularly find yourself overcrowding a fryer that is simply too small for your household.
Dual-basket air fryers help with this by giving you two independent cooking zones, useful for cooking a main and a side without overcrowding either one. Our best air fryers for families guide covers dual-zone models well suited to larger households that frequently cook bigger batches.
Air fryers are particularly good with frozen food because the hot, fast-moving air thaws and crisps the exterior simultaneously, which is why frozen fries, nuggets and similar items are often the first thing new owners try. A few general habits make frozen cooking go smoothly. There is no need to thaw most frozen foods first; cooking from frozen is exactly what these foods are designed for and is usually how the package instructions are written.
Frozen food generally needs a few extra minutes compared with the equivalent fresh or thawed item, since the fryer first has to bring the food up to temperature before it can start crisping the surface. Check the food a few minutes before the package or recipe time is up rather than assuming it is automatically done at the stated time, since actual cook time varies with how full the basket is and how cold the food was to start.
Shake or flip frozen items partway through just as you would with fresh food, since frozen pieces are just as prone to uneven cooking if they are not separated and tossed. Avoid overcrowding frozen food in particular; pieces straight from the freezer often stick together in a clump, and breaking them apart before loading the basket helps the fryer crisp each piece rather than one frozen block.
We deliberately are not listing exact minute-by-minute times for specific frozen foods here, since cook times vary meaningfully between fryer models, wattages and how full the basket is. Check your fryer manual or the food packaging for a starting point, then adjust based on what you observe, checking a few minutes early until you learn how your specific machine performs.
The exterior of an air fryer, the basket handle, and especially the basket itself get genuinely hot during and immediately after cooking. Always use oven mitts or a folded towel when removing the basket, and set it down on a heat-safe surface, not directly on a countertop that could scorch or a surface that is not heat-resistant.
Keep the air vent clear at all times during cooking; air fryers exhaust hot, sometimes slightly smoky air from the back or top, and blocking that vent with a wall, cabinet or other object is both a fire risk and a performance problem. Never line the basket with paper that is not specifically rated for air fryer use, since loose paper can be sucked into the heating element by the fan and ignite. If using parchment, use perforated, fryer-safe parchment and weigh it down with food so it cannot lift into the element before the fan kicks in.
Do not leave a fryer unattended for long unsupervised stretches, particularly with fattier foods that can occasionally smoke if grease drips and overheats. Unplug the unit when not in use rather than leaving it powered on standby indefinitely, and let it cool fully before cleaning.
Beyond overcrowding and excess oil, a few other habits trip up new owners. Using wet, loose batter (the kind you would use for deep frying) almost always fails in an air fryer, since there is no oil bath to set it and it simply drips through onto the element; stick to dry coatings like breadcrumbs or a light flour dredge instead. Skipping the shake or flip step on foods that need it leads to that frustrating half-crisp, half-soggy result beginners often blame on the fryer rather than the technique.
Assuming every recipe time applies exactly to your machine is another common trap, since wattage and basket size vary between models; treat any recipe time as a starting estimate and check a few minutes early until you learn your fryer’s tendencies. Finally, skipping regular cleaning lets grease build up on the heating element, which is the most common cause of smoke and off smells during cooking; our how to clean an air fryer guide covers the simple routine that prevents this.
Once these habits become second nature, an air fryer becomes one of the fastest, most reliable tools in the kitchen. If you are still deciding which model to buy, our best air fryers of 2026 ranking compares the strongest options across budgets, and our air fryer buying guide covers the spec decisions in more depth.
No. Preheating barely affects quick-cooking items like frozen fries or nuggets. It helps more with breaded, battered or baked items where an immediate blast of heat improves the crisp or rise. Follow a recipe's preheat instruction if it gives one.
Often none at all for foods with natural fat, like chicken thighs or pre-breaded frozen items. For fresh items like potato wedges, a light spray or a teaspoon or two tossed through is enough. Heavy oil pours work against you and create smoke and mess.
The most common cause is overcrowding the basket, which blocks hot air circulation and traps steam. Cook in a single, loosely arranged layer and use two batches rather than piling food in deep.
Foil is generally fine if weighed down by food and kept clear of the heating element. Use only perforated, fryer-rated parchment, also weighed down by food, since loose paper can be pulled into the element by the fan.
No. Most frozen food is designed to go straight into the fryer from frozen. Expect it to need a few extra minutes compared with fresh or thawed food, and check a few minutes early since exact times vary by fryer.
For small items like fries or nuggets, shake once around the halfway point and again near the end for longer cooks. Larger single items like a chicken breast are better flipped once rather than shaken.
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