Is the marked capacity of the air fryer the actual usable volume?

The labeled capacity of an air fryer usually refers to its maximum capacity, but this may not necessarily be the actual usable capacity. Here are a few detailed explanations about this issue:
1. Annotated capacity vs actual available capacity:
Annotated capacity: The labeled capacity of an air fryer is the maximum volume given by the manufacturer during testing, usually referring to the internal volume of the fryer, usually measured in liters (L). This is usually measured in the absence of ingredients.
Actual available capacity: The actual available capacity will be affected by the type and placement of ingredients. After the ingredients are put in, not all the space inside the air fryer can be effectively utilized, because factors such as the shape and thickness of the ingredients can limit the space for air circulation, thereby affecting the efficiency and cooking effect of the fryer.
2. The impact of air circulation:
Air fryers use hot air flow to heat food. If the ingredients are filled too full, the air flow will be obstructed, affecting the cooking effect. So even if the labeled capacity is large, in order to ensure even and efficient cooking, the placement of ingredients cannot exceed a reasonable height or weight.
3. Capacity considerations in actual use:
In practical use, the optimal capacity for air fryer is usually slightly smaller than the labeled capacity. Taking a 5L air fryer as an example, in reality, a reasonable amount of ingredients may only reach around 4L, especially for larger and heavier ingredients such as chicken wings and pork chops.