Crispy textures define great fried food, but soggy results plague underpowered countertop units. High airflow speed, high cooking heat, and wide basket geometry separate top-tier performers from basic convection warmers. Home cooks seeking deep-fried crunch without oil baths need appliances engineered for fast surface evaporation.

This evaluation covers 10 models available in September 2026 to identify the best air fryers for crisping. Whether feeding a busy family or outfitting a compact kitchen, selecting the right machine depends on heat ceilings and pan design. Explore our broader analysis of Air Fryers and Countertop Appliances to assess different cooking formats.

1
Best Seller

Cosori TurboBlaze 6 Qt Air Fryer

Cosori
In Stock
9.6 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict The Cosori TurboBlaze is a 6-quart air fryer with a powerful 5-speed fan system and PFAS-free ceramic coating, designed for even, quiet cooking. It's ideal for home cooks seeking a versatile, easy-to-clean air fryer that handles everything from frozen foods to proofing bread.
Pros & Cons

Pros

  • Even cooking with 5 fan speeds
  • Quiet operation under 53 dB
  • PFAS-free ceramic coating
  • Dishwasher-safe basket and plate
  • Versatile 9-in-1 cooking functions

Cons

  • Not for thin, lightweight foods in Turbo mode
  • Requires 5-inch clearance behind and above
  • Basket cannot be turned over during use
Specifications
ColorDark Gray
Size6QT
Dimensions14.4 x 11.8 x 11.9 inches
Weight13.2 Pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • TurboBlaze 5-speed airflow system for even, crispy results
  • PFAS-free ceramic coating for healthier, durable nonstick surface
  • 9-in-1 functions: air fry, roast, bake, broil, dehydrate, proof, reheat, keep warm
  • Quiet operation below 53 dB even at highest fan speed
  • Square 6-quart basket fits 20 chicken wings, saves counter space
  • Automatic resume cooking when basket is reinserted
Best For / Avoid If

Best for buyers prioritizing

  • Even cooking with 5 fan speeds
  • Quiet operation under 53 dB
  • PFAS-free ceramic coating

Consider another option if

  • Not for thin, lightweight foods in Turbo mode
  • Requires 5-inch clearance behind and above
  • Basket cannot be turned over during use
2
Editor's Pick

Ninja DZ201 Foodi 8 Quart DualZone Air Fryer

Ninja
In Stock
9.5 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict This dual-basket air fryer lets you cook two different foods at separate times and temperatures, finishing both together. Ideal for households with varied meal preferences who want faster, more flexible meal prep.
Pros & Cons

Pros

  • Two separate cooking zones
  • Smart Finish for coordinated meals
  • Dishwasher-safe baskets
  • Wide temperature range
  • Versatile 6-in-1 functions

Cons

  • Bulky footprint for counter space
  • No pressure cooking function
  • Heavy at 17.9 pounds
Specifications
Color8QT GREY
Size8-QT & DualZone (Grey)
Dimensions13.86 x 15.63 x 12.4 inches
Weight17.86 pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Two independent 4-quart baskets allow cooking two foods at different settings simultaneously
  • Smart Finish feature synchronizes both baskets to finish at the same time, no more staggered meals
  • Match Cook button copies settings from one zone to the other for full 8-quart capacity
  • Six versatile programs: air fry, air broil, roast, bake, reheat, and dehydrate
  • Wide temperature range from 105°F to 450°F for gentle drying or high-heat crisping
  • Nonstick, dishwasher-safe baskets and crisper plates simplify cleanup
Best For / Avoid If

Best for buyers prioritizing

  • Two separate cooking zones
  • Smart Finish for coordinated meals
  • Dishwasher-safe baskets

Consider another option if

  • Bulky footprint for counter space
  • No pressure cooking function
  • Heavy at 17.9 pounds
3
Limited Time

Cosori Air Fryer Pro LE 5 Qt

Cosori
In Stock
9.9 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict This 5-quart air fryer from Cosori combines a ceramic-coated basket with a 450°F max temperature for faster, crispier cooking. It's ideal for home cooks seeking an easy-to-clean, quiet appliance that handles full meals in one batch.
Pros & Cons

Pros

  • Ceramic coating releases food easily
  • Dishwasher-safe parts simplify cleanup
  • Quiet operation under 55 dB
  • Square basket fits more food
  • High temp for faster cooking

Cons

  • No included elevated rack
  • Basket shape may not fit all kitchens
  • Requires 5-inch clearance behind
Specifications
ColorDark Gray
Size5 QT
Dimensions14.4 x 10.8 x 12 inches
Weight10 Pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Ceramic nonstick coating for effortless food release and quick cleanup
  • 450°F high heat cooks meals up to 50% faster than a conventional oven
  • Shake reminder ensures even browning without constant monitoring
  • Dishwasher-safe basket and crisper tray reduce post-cooking mess
  • Includes 130+ in-app recipes with nutrition info for meal planning
  • Patented Air Whisper technology keeps noise under 55 dB
Best For / Avoid If

Best for buyers prioritizing

  • Ceramic coating releases food easily
  • Dishwasher-safe parts simplify cleanup
  • Quiet operation under 55 dB

Consider another option if

  • No included elevated rack
  • Basket shape may not fit all kitchens
  • Requires 5-inch clearance behind
4
Top Rated

Ninja Air Fryer Pro 5 Qt 4-in-1 Grey

Ninja
In Stock
9.6 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict This 5-quart air fryer uses 400°F superheated air to crisp food with little to no oil, offering four functions: air fry, roast, reheat, and dehydrate. It fits up to 4 lbs of fries and cooks frozen snacks quickly, making it a solid choice for home cooks seeking healthier fried food without sacrificing capacity.
Pros & Cons

Pros

  • Large 5-quart capacity
  • Dishwasher-safe nonstick basket
  • Four versatile cooking functions
  • Fast preheat to 400°F
  • Compact countertop footprint

Cons

  • Plastic and metal build
  • No integrated temperature probe
  • Only 4-in-1 functions
Specifications
ColorGrey
Size5 QT
Dimensions14.84 x 11.29 x 10.39 inches
Weight10.34 Pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Crisps with superheated air up to 400°F using little to no oil for golden results
  • Four cooking modes: air fry, roast, reheat, and dehydrate for versatile meal prep
  • 5-quart basket fits 4 lbs of fries or 5 lbs of chicken wings for family-sized portions
  • Cooks frozen foods to an extra-crispy finish in minutes without thawing
  • Reduces fat by up to 75% compared to traditional deep frying for healthier eating
  • Nonstick basket and crisper plate are dishwasher-safe for easy cleanup
Best For / Avoid If

Best for buyers prioritizing

  • Large 5-quart capacity
  • Dishwasher-safe nonstick basket
  • Four versatile cooking functions

Consider another option if

  • Plastic and metal build
  • No integrated temperature probe
  • Only 4-in-1 functions
5

Cuisinart ClearView 4-Quart Glass Basket Air Fryer

Cuisinart
In Stock
9.8 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict This Cuisinart air fryer uses a transparent borosilicate glass basket and ceramic-coated tray to let you see food crisp without opening the door. Ideal for 1-2 people who want easy cleanup and no nonstick coatings.
Pros & Cons

Pros

  • See food cook through clear glass
  • No toxic nonstick coatings
  • Dishwasher-safe basket and tray
  • Heats up to 450°F
  • Auto-pause feature

Cons

  • Heating element not centered
  • Small capacity for 1-2 people
  • No preset for frozen foods
Specifications
ColorBlack
SizeLarge
Dimensions12.2 x 12.6 x 11.5 inches
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Transparent glass basket lets you watch food cook without opening the unit
  • Borosilicate glass basket and ceramic-coated tray are PFAS-free and dishwasher safe
  • Five cooking functions: Air Fry, Bake, Broil, Recrisp, and Keep Warm
  • Heats to 450°F in 5-degree increments for precise control
  • Included lid lets you store leftovers in the same container
  • Auto-pause when basket is opened, resume when closed
Best For / Avoid If

Best for buyers prioritizing

  • See food cook through clear glass
  • No toxic nonstick coatings
  • Dishwasher-safe basket and tray

Consider another option if

  • Heating element not centered
  • Small capacity for 1-2 people
  • No preset for frozen foods
6
-42%
Chefman TurboFry Touch 6 QT Air Fryer

Chefman TurboFry Touch 6 QT Air Fryer

Chefman
In Stock
9.5 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
$119.99 Save $50.03
$69.96
Quick Verdict This 6-quart Chefman air fryer delivers crisp results with a unique Hi-Fry boost to 450°F in the final two minutes. Best for home cooks wanting a compact, easy-to-clean machine with presets for quick meals.
Pros & Cons

Pros

  • Extra crisp finish with 450°F boost
  • Easy touchscreen presets
  • Dishwasher-safe nonstick basket
  • Compact footprint for 6 quart capacity
  • Automatic shutoff for safety

Cons

  • No preheat function
  • No viewing window on basket
  • Plastic and metal construction
Specifications
ColorBlack
Size6 quart - No Window
Dimensions14.88 x 11.1 x 11 inches
Weight10.1 Pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Hi-Fry Technology boosts to 450°F for extra crisp in final 2 minutes
  • Digital touchscreen with 4 presets for one-touch cooking
  • LED shake notification reminds you to flip food for even results
  • Nonstick, dishwasher-safe basket and rack simplify cleanup
  • Automatic shutoff turns off when basket is removed or cooking ends
  • Compact design fits small countertops while holding 6 quarts
7
-21%
Cuisinart 6-Quart Air Fryer

Cuisinart 6-Quart Air Fryer

Cuisinart
In Stock
9.9 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
$149.95 Save $31.46
$118.49
Quick Verdict This Cuisinart air fryer offers five cooking functions and presets in a 6-quart basket, making it a versatile choice for home cooks who want to roast, bake, broil, or air fry without a large footprint.
Pros & Cons

Pros

  • Versatile cooking functions
  • Easy presets for common foods
  • Large 6-quart capacity
  • High heat up to 450F
  • Dishwasher-safe basket

Cons

  • Plastic construction may feel less durable
  • Noisy operation during use
  • Bulky for small countertops
Specifications
ColorStainless Steel & Black
Size6 Qt. Window
Dimensions12 x 16.5 x 12.25 inches
Weight1 Pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Five cooking functions let you air fry, roast, bake, broil, or keep warm
  • Five presets for French fries, wings, vegetables, frozen snacks, and leftovers
  • 6-quart capacity fits a 4 lb chicken, 2 lb fries, or an 8-inch cake pan
  • 1800 watts and adjustable temperature up to 450F for high heat performance
  • Toss reminder and touch screen display for even crisping
  • Large viewing window to monitor food without opening the basket
Best For / Avoid If

Best for buyers prioritizing

  • Versatile cooking functions
  • Easy presets for common foods
  • Large 6-quart capacity

Consider another option if

  • Plastic construction may feel less durable
  • Noisy operation during use
  • Bulky for small countertops
8

Instant Pot Vortex Plus 6QT Air Fryer

Instant Pot
In Stock
9.8 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict The Instant Pot Vortex Plus 6QT is a versatile 6-in-1 air fryer that uses EvenCrisp technology to deliver crispy results with 95% less oil. It's ideal for families or home cooks who want a compact, multi-functional appliance for quick meals and reheating.
Pros & Cons

Pros

  • Versatile 6-in-1 functions
  • EvenCrisp for consistent crunch
  • Large 6-quart capacity
  • Easy-to-use touchscreen controls
  • Dishwasher-safe basket

Cons

  • App control may feel unnecessary
  • Display shows 'off' when idle
  • No preheating time required
Specifications
ColorStainless Steel
Size6 qt
Dimensions14.92 x 12.36 x 12.83 inches
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • EvenCrisp technology delivers crunchy texture with 95% less oil than deep frying
  • 6 cooking functions: air fry, bake, roast, broil, dehydrate, and reheat
  • Adjustable temperature from 95 to 400°F for precise control
  • 6-quart capacity fits up to 6 portions, perfect for meal prep
  • One-touch settings and intuitive touchscreen simplify operation
  • Non-stick, dishwasher-safe basket for effortless cleanup
Best For / Avoid If

Best for buyers prioritizing

  • Versatile 6-in-1 functions
  • EvenCrisp for consistent crunch
  • Large 6-quart capacity

Consider another option if

  • App control may feel unnecessary
  • Display shows 'off' when idle
  • No preheating time required
9

Ninja Air Fryer Pro XL 6.5 Qt

Ninja
In Stock
9.5 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
Quick Verdict The Ninja Air Fryer Pro XL is a large-capacity air fryer with MaxCrisp technology reaching 450°F for crispy results using little oil. It offers 6 cooking functions and a 6.5-quart basket for family meals. Best for home cooks wanting healthier fried foods without sacrificing space or performance.
Pros & Cons

Pros

  • High 450°F max temperature for crispiness
  • Large 6.5-quart capacity for families
  • Dishwasher-safe nonstick basket and plate
  • 6 versatile cooking functions included
  • Compact footprint for countertop use

Cons

  • Heavy at 11.4 pounds
  • No built-in presets for specific foods
  • Touch controls may be less intuitive than dials
Specifications
ColorGrey
Size6.5 QT MAX
Dimensions14.92 x 11.3 x 12.01 inches
Weight11.44 pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • MaxCrisp Technology delivers 450°F superheated air for extra crispy results
  • 6.5-quart capacity fits up to 9 lbs of chicken wings or 5 lbs of fries
  • 6-in-1 functions: Max Crisp, Air Fry, Roast, Bake, Reheat, Dehydrate
  • Cooks frozen foods quickly without thawing for restaurant-style finish
  • Reduces fat by up to 75% compared to traditional deep frying
  • Nonstick basket and crisper plate are dishwasher safe for easy cleanup
10
-12%
NutriChek 5.8QT Air Fryer with Glass Bowl

NutriChek 5.8QT Air Fryer with Glass Bowl

NutriChef
In Stock
9.5 /10
ACMS Score
ACMS Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions.
Updated: Sep 21, 2026
Last update on Sep 21, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Creators API.
$84.99 Save $10.52
$74.47
Quick Verdict This 5.8-quart air fryer from NutriChef uses a transparent glass bowl so you can watch your food cook without opening the unit. It's a good pick for health-conscious cooks who want to avoid non-stick coatings and prefer real-time visibility.
Pros & Cons

Pros

  • Glass bowl for real-time visibility
  • No toxic non-stick coating
  • Quiet operation
  • Easy to clean
  • Large 5.8 quart capacity

Cons

  • Heavy glass bowl
  • Preset programs not adjustable
  • Requires careful seating of bowl
Specifications
ColorWhite
Size14.0" x 11.6" x 11.1" -inches
Dimensions14 x 11.6 x 11.1 inches
Weight13.01 pounds
Product GroupKitchen
BindingKitchen

Verify the current product variation before purchase; specifications may change.

Detailed Review

What stands out in the currently available product data:

  • Transparent glass bowl lets you monitor food without opening the fryer
  • 8 preset cooking modes for shrimp, steak, fries, wings, chicken, and more
  • 1200W heating element delivers fast, even cooking with 360° hot air
  • Non-stick and dishwasher-safe tray simplifies cleanup
  • Automatic shut-off and overheat protection for safe operation
  • Compact footprint saves counter space for small kitchens
Best For / Avoid If

Best for buyers prioritizing

  • Glass bowl for real-time visibility
  • No toxic non-stick coating
  • Quiet operation

Consider another option if

  • Heavy glass bowl
  • Preset programs not adjustable
  • Requires careful seating of bowl

Buying Guide: How to Pick the Best Air Fryers for Crisping

Maximum Temperature Limits and High-Heat Modes

Standard convection units stall out around 400 degrees Fahrenheit. Units built specifically for crisping often reach 450 degrees Fahrenheit. That extra 50 degrees creates rapid moisture evaporation on food surfaces, driving real Maillard browning.

High temperatures prove essential when cooking frozen items straight from the bag. Fast thermal recovery ensures foods blister rather than steam. Machines featuring dedicated finish settings deliver reliable crunch on chicken skins and thick-cut potatoes.

Fan Velocity and Internal Air Circulation

Raw heat requires strong circulation to strip moisture effectively. Convection fans moving air at speeds up to 3600 rpm circulate superheated air continuously. This uniform vortex strips surface moisture before the interior dries out.

Variable fan systems allow gentler speeds for baking alongside top-speed bursts for searing. Dedicated crisping cycles use full fan power to eliminate cool pockets. Without robust air movement, food traps steam in the basket base and softens.

Basket Geometry and Single-Layer Surface Area

Quart volume measurements can disguise narrow, vertical basket shapes. Wide, square baskets offer superior usable surface area for flat cooking. Piling wings or fries into deep layers traps liquid, causing bottom layers to turn soft.

Dual-zone designs provide two distinct cooking environments. While total capacity splits into smaller individual baskets, twin heating zones let you crisp two foods independently. Readers comparing formats should read our breakdown on glass air fryer vs basket air fryer designs to match counter layouts.

Appliance StyleUsable Floor AreaAirflow EfficiencyBest Food Types
Dual-Basket (e.g. 8-Qt)Moderate per zoneHigh isolated draftSplit proteins and sides
Wide Single Square (5 to 6-Qt)Maximum flat spreadFast vortexWings, flat cuts, fries
Glass Bowl (4 to 5.8-Qt)Standard circularVisible circulationVegetables, single portions

Coating Materials and Food Contact Safety

Crisping plates require slick coatings to release high-heat sugars. Many modern options feature ceramic nonstick layers formulated without PFAS chemicals. Ceramic holds up against high convection currents while maintaining simple cleanup.

Glass cooking vessels offer an alternative to coated metals entirely. Borosilicate glass maintains temperature without nonstick degradation over time. However, glass inserts add noticeable handling weight compared to standard sheet metal baskets.

Viewing Windows and Process Monitoring

Opening a drawer causes instantaneous chamber heat loss. Reheating the air pocket slows cooking times and softens crusts. Transparent front panels or all-glass baskets let cooks monitor browning without interrupting airflow.

Interior lights paired with clear windows eliminate thermal dips. Cooks can pull items at the exact peak of crispness. If preparing poultry frequently, review our guide on the Best Air Fryer for Chicken to evaluate specialized browning functions.

Why You Should Trust Us

Our evaluations rely on detailed analysis of factory engineering specifications, thermal output curves, and structural dimensions. We compare wattages, fan speeds, interior basket dimensions, and coating compositions to determine how well appliances manage air convection.

We examine verified owner patterns over extended operational lifespans to spot performance drops and coating failures. Our analysis remains strictly objective, highlighting practical tradeoffs in noise, countertop clearance, and basket utility without promotional inflation.

Final Thoughts

For cooks needing large capacity and multi-dish flexibility, the Ninja DZ201 Foodi 8 Quart 6-in-1 DualZone 2-Basket stands as our best overall selection. Its twin independent chambers and Smart Finish technology allow simultaneous cooking of mains and sides without scent transfer.

Cooks seeking maximum crunch on a modest budget should consider the Chefman Air Fryer – 6 QT Compact Airfryer as our best value choice. Its dedicated 450-degree Hi-Fry setting and generous basket size deliver strong finishing heat at an accessible price. For more budget-conscious kitchen tools, explore our roundup of the best air fryers under $100.

When rapid single-basket crisping is the primary goal, the Cosori TurboBlaze Air Fryer, 9-in-1, 6 Qt delivers exceptional performance. Its 3600 rpm motor and ceramic coating maximize heat transfer while keeping motor noise remarkably low during high-temp runs.

FAQs

What temperature is required for best air fryers for crisping?

Crisping functions perform best between 400 and 450 degrees Fahrenheit. Lower settings around 350 degrees cook food through, but higher thermal ceilings are needed to blister starches and render animal fats quickly.

How does basket shape influence crisping performance?

Square baskets provide broader flat floor area than round designs of identical volume. Spreading food into a single uncrowded layer ensures hot air surrounds every piece rather than trapping moisture between touching surfaces.

Why is a shake reminder useful during air frying?

Airflow cannot circulate through dense piles of food like French fries. An audible reminder prompts cooks to redistribute items mid-cycle, exposing unbrowned surfaces to upper heating elements and fast cyclonic air.

Are ceramic coatings better than traditional nonstick?

Ceramic coatings provide durable food release without PFAS formulations. They tolerate regular high-heat cooking well and wash easily, though cooks should still avoid metal utensils to protect the surface.

Can glass basket air fryers achieve high crisp levels in 2026?

Units with borosilicate glass reach crisping temperatures up to 450 degrees Fahrenheit. The dense glass walls retain heat efficiently, while the transparent body prevents the thermal loss associated with pulling open drawers to check browning.

Do dual-basket air fryers lose crisping power compared to single-basket units?

Dual-basket units divide their total wattage across two heating elements and fans. While they cook two separate foods effectively, smaller individual basket floors mean large batches of single items must be split between zones.

How much oil is needed in the best air fryers for crisping?

A light misting of high-smoke-point oil significantly boosts crunch. Total immersion is unnecessary, but a tiny amount of oil conducts dry air heat onto starches to trigger the Maillard reaction faster. Check our broader Best Air Fryer Machines guide for deeper usage techniques.