Short Answer:

No, frozen items should not be stacked in the air fryer basket. Stacking blocks airflow, leading to uneven cooking, soggy spots, or undercooked centers.

To ensure even cooking and crispiness, place frozen items in a single layer with space between each piece. For larger quantities, cook in multiple batches rather than stacking, and shake or flip midway to promote consistent texture and browning.

Detailed Explanation:

Stacking Frozen Items in the Air Fryer

Air Circulation is Key
Air fryers cook by circulating hot air around the food. Stacking frozen items prevents hot air from reaching all surfaces, which can result in uneven cooking. Some pieces may be overcooked on the edges while others remain frozen or soft in the center.

Proper Layering
Always arrange frozen items in a single layer with small gaps between pieces. This allows hot air to circulate freely and ensures that each piece develops a golden, crispy exterior while cooking evenly on the inside.

Batch Cooking for Large Quantities
If you need to cook a large amount of frozen food, divide it into smaller batches. Cooking multiple batches prevents overcrowding, maintains crispiness, and ensures uniform cooking. While it may take slightly longer overall, the results are much better than stacking.

Shaking or Flipping Midway
Even when items are properly spaced, shaking or flipping halfway through cooking improves exposure to hot air. This ensures consistent browning and prevents soft spots, particularly for fries, nuggets, spring rolls, or breaded items.

Impact on Texture
Stacking frozen items often leads to soggy or unevenly cooked foods. Single-layer cooking produces crisp edges and maintains texture, whereas stacked items may become soft, undercooked, or unevenly browned due to blocked airflow.

Tips for Best Results

• Preheat the air fryer for 2–3 minutes to start cooking immediately at the proper temperature.
• Use a light spray of oil to enhance browning if desired.
• Monitor thick or large pieces and adjust cooking time slightly to ensure thorough cooking.

Conclusion:

Frozen items should not be stacked in an air fryer basket, as this restricts airflow and prevents even cooking. Arranging in a single layer, cooking in batches if needed, and shaking or flipping midway ensures crisp, evenly cooked, and safe-to-eat frozen foods with uniform texture and browning.