Recipe-sized capacity
Will dinner fit in one real batch?
Headline quarts are not automatically usable quarts. Baskets, racks, air space, liquid limits, expansion, and recipe-specific fill lines take their share.
Use the recipe's limit
Pressure, foaming foods, air circulation, and basket loading can impose different working limits. Enter the smaller documented number that applies to the food you actually make.
Use the exact model manual for fill lines and cooking limits: Ninja's Foodi XL Pro Air Oven owner guide is one current example.