Open wide! In this live show, Karl tackles one of the most challenging food shots out there: the mighty burger.

With Georgie busy in the kitchen prepping the food, and Emma helping to fine-tune the lighting, Karl and his team demonstrate the creativity, experimentation and attention to detail that this kind of shoot demands.

Karl sets the shot up using foam chips and burgers as stand-ins for the real thing. Then he brings in a test burger for final refinements to the lighting and composition. Why? Because capturing food when it's freshly cooked is crucial to creating a mouth-watering image.

Top styling tips shown during the shoot include a glaze to make the bun look more appealing, how to melt cheese just so, and how to get that lovely glossy look on the burger itself. As he modifies and refines the lighting - answering viewers’ questions in real time as he works - Karl uses a variety of lighting modifiers and basic studio kit.