For many Americans, summer means afternoons spent tending burgers on the grill. Mark Bucher, founder of BGR The Burger Joint, and Tim Carman, Washington Post food critic, along with WAMU 88.5 producer Michael Martinez, demonstrate how to prepare the ideal hamburger patty. Get tips like how big to make your patty, what ingredients to use (hint: sometimes all you need is salt and pepper), why your thumbprint plays an important role and how to tell the difference between medium well and medium rare.