Air Fryer Do’s and Don’ts: Avoid Common Mistakes & Get Better Results

Last updated: February 12, 2026

Air fryers are simple to use, but small mistakes can lead to soggy food, smoke, uneven cooking, or frustration.

This guide covers the most important air fryer do’s and don’ts so you can:

• Cook crispier food
• Avoid common beginner mistakes
• Prevent smoke and burning
• Extend the life of your appliance

If you’re new to air frying, read this alongside our How to Use an Air Fryer (Beginner Guide).

✅ Air Fryer Do’s

✔ Do Preheat When Crispness Matters

Preheating for 3–5 minutes helps:

• Improve browning
• Reduce cooking time
• Create crispier texture

Especially helpful for frozen foods and breaded items.

✔ Do Cook in a Single Layer

Air fryers rely on airflow.
For best results:

• Spread food evenly
• Avoid stacking
• Cook in batches if necessary

Air circulation equals crispiness.

✔ Do Shake or Flip Halfway

Most foods cook more evenly when turned once during cooking.
Especially important for:

• Fries
• Nuggets
• Vegetables
• Chicken wings

Some models even include shake reminders.

✔ Do Use a Small Amount of Oil (When Needed)

While air fryers require less oil, a light spray can:

• Improve browning
• Prevent dryness
• Enhance crisp texture

Avoid pouring oil directly into the basket.

✔ Do Clean After Greasy Meals

Grease buildup causes:

• Smoke
• Burning smells
• Poor performance

Wipe down the interior and wash the basket after cooking fatty foods.

✔ Do Use a Food Thermometer for Meat

Air fryers cook fast, and overcooking happens easily.
Use a thermometer to ensure:

• Chicken reaches safe temperature
• Pork and beef aren’t overdone

This removes guesswork.

❌ Air Fryer Don’ts

❌ Don’t Overcrowd the Basket

This is the most common mistake.
Overcrowding:

• Blocks airflow
• Causes soggy texture
• Leads to uneven cooking

If food overlaps heavily, cook in batches.

❌ Don’t Use Too Much Oil

Too much oil can:

• Cause smoking
• Burn residue
• Damage the nonstick coating

Light spray only.

❌ Don’t Use Aerosol Cooking Sprays

Many aerosol sprays contain additives that damage nonstick surfaces over time.
Use:

• Oil sprayer bottles
• Light brushing
• Parchment liners made for air fryers

❌ Don’t Forget to Check Early

Air fryers cook faster than ovens.
Check food 2–3 minutes before the recommended time.
It’s easier to add time than fix overcooked food.

❌ Don’t Put Lightweight Parchment in Without Food

Loose parchment can:

• Fly into the heating element
• Cause burning
• Create fire risk

Always weigh parchment down with food.

❌ Don’t Place the Air Fryer Against a Wall

Air fryers need airflow around them.
Leave:

• 4–6 inches clearance
• Open space above
• No blocked rear vents

Proper ventilation prevents overheating.

🔥 Bonus Tip: Understand Your Model

Basket models and oven-style models behave differently.

If you’re unsure which style you have or need, read:

• Basket vs Air Fryer Oven
• What Size Air Fryer Do I Need?

🧠 Frequently Asked Questions

Why is my air fryer smoking?

Usually grease buildup or too much oil. Clean the interior and reduce oil usage.

Why isn’t my food crispy?

Likely overcrowding or skipping preheat.

Can I use foil?

Yes, but avoid blocking airflow and never let it touch the heating element.

🎯 Final Thoughts

Air fryers are simple, but airflow is everything.

Follow these do’s and don’ts and you’ll get:

• Crispier results
• Fewer mistakes
• Longer appliance lifespan
• Better overall cooking experience

For more foundational help, visit our Air Fryer Beginner Knowledge Center.