The highest setting on a toaster typically varies depending on the specific model and brand. Toasters typically have a range of settings, often numbered from 1 to 7 or higher, indicating the level of toasting or browning desired. Some toasters may even go up to 9 or 10.
The actual highest setting used by individuals could differ based on their personal preferences and the type of bread they are toasting. Some people might prefer their toast lightly toasted on a low setting, while others may like it darker and crunchier, requiring a higher setting.
To know the most recent or extreme toaster settings used by someone, you would need to refer to current sources or surveys that provide such information.