In the United States, the term czar has been used by the media to refer to appointed executive branch officials since at least the 1930s and then the 1940s under President Franklin D. Roosevelt.
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. Thatâs 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 donât have all that much air to heat up.
If you are to cook at 350 degrees for 30 minutes...and you don't preheat: It may take 5 minutes for your oven to reach 350 degrees..it then maintains that temp by cycling on and off as needed. If you didn't preheat you have 5 of your 30 minutes baking time being somewhere in between 0 and 350 degrees. Simple. If you have a fan oven you may not have to pre-heat it. In fact the instructions for my oven say not to pre-heat for many types of cooking.