how long preheat oven
Preheating in a toaster oven is very different from a traditional wall oven. The space inside traditional ovens is huge and preheating can 10 to 20 minutes. Thatâs a lot of energy being used to heat all that air! The interior of toaster ovens, on the other hand, are very small. Even the largest models donât have all that much air to heat up.