What is the incubation period ociated with pulmonary aspiration (inhaling food)?

Incubation is not a good word to use because food is not a pathogen (i.e. bacterias), but aspiration can be a serious thing because it blocks the small alveoli in your lungs. When this things are blocked, it cannot perform gas exchange (O2 and CO2) and can cause serious consequences. It will be like suffocating or drowning.