Take a simple burger as an example, To get the perfect-looking burger, food stylist often will use a partially cooked burger patty because it will appear plump. But how do they get that just-cooked look? Well, a useful tool is a small blowtorch which can burn marks into the burger to make it look like is was grilled. Brown food coloring and some oil are then painted onto the burger to make it look yummy. Now it's time to figure out how to photograph the bun. Photographers might need hundred of buns before they can find the "perfect" bun. And if it's a sesame bun, they'll need a pair of tweezers to glue on the sesame seeds in just the right spot. Often the bun is held in place with toothpicks, so it won't move, and paper towels are placed under the burger so that it doesn't drip all over the bun and make it soggy, Finally, a perfect piece of lettuce, without any holes or brown spot, is chosen and sprayed with glycerin and water, so that it look fresh. The same is done to perfect slice of tomato. Sound appetizing?