The calculation in plain English
The calculator starts with the oven or packet instruction, lowers the temperature, shortens the time into a range, then adjusts for food category, frozen state, air fryer style and model behaviour. It deliberately returns a range because air fryers do not cook identically.
- We reduce temperature first.
- We shorten time into a range.
- We add check points and safety notes instead of pretending one number fits every air fryer.