The reason why the toaster exposes a section of toast is as follows:

1. Convenient inspection: By exposing a section of toast, the operator can easily observe the degree of toasting and ensure Toast achieves ideal toasting effect. If you need to adjust the baking time or temperature, you can make corresponding adjustments in time.

2. Convenient handling: When the toast is baked, a piece of toast is exposed to facilitate the operator to take out the toast without burning the fingers.

3. Improve efficiency: Toasters usually bake continuously. Exposing a piece of toast allows the operator to quickly identify which toast has been toasted, so that it can be taken out and served more efficiently. .