Professional ovens tend to be convection ovens. They have a fan that moves the air around which prevents uneven cooking (hot and cold apots) and will bring it up to temperature faster.
Standard home ovens have radiant heat, which will take longer to get back up to temp once it has dropped from the door being opened a lot.
One, on a cooking show, your audience doesn’t eat the food, they see it. Likewise, in competitions, your food has to be as perfect as you can possibly get it. Losing a little heat and upping the cook time a bit is a small price to pay for knowing the exact status of your food. You lose drastically more time by having to redo it if you burn it, and being able to see exactly how it looks allows you to know exactly when to take it out.
Two, those ovens are mad good. Your glorified toaster doesn’t even begin to compare. These ovens cost thousands, sometimes tens of thousands, of dollars. They heat up far more efficiently than what you’re used to, and reheat faster after they’re opened.
Three, anxiety. In competitions, the *only* thing you’re doing is cooking, and there’s money on the line, so it’s stressful. Especially in baking shows, there’s a lot of downtime while stuff is in the oven, so they’re sitting there stewing in their own stress while they wait. Opening the oven to check your food is similar to checking the clock when you’re almost off work, or peeking out the window when you’re expecting someone to come over. It’s just a tic, and a way to distract yourself from the stress.
If you’ve made the same recipe a thousand times using the same equipment, it’s probably safe to go by a time measurement. Chefs on cooking shows are using ovens they’ve never used before, so they don’t know the irregularities of their equipment. The only way to know if something is done is with a thermometer or by looking at it. A measurement of time is not useful on equipment you haven’t used.
Professional working chef here. You can open an oven when something is cooking often depending on what oven you have. Most ovens in professional kitchens have multiple fans or an advance heating method as opposed to what most people have at home with just a raw heating element. It heats up really fast so opening it and checking to see what your food looks like won’t really drop the temp that much. Overcrowding the oven will mess with the heat source more than opening it a lot.
Latest Answers