The Kitchenrama 16 kW 2-Deck 6-Tray Electric Oven KHEO-26 is used in commercial kitchens because of its durability. This model has a large interior, making it the perfect choice for use at a restaurant or other kitchen with high volume. It can hold up to 18 muffins on each deck and has a glass door that allows you to look inside the top deck while switching trays. The lower deck’s transparent door also gives you a view of what is being cooked below.