A great burger always starts with high-quality ground beef. Sure, a nicely toasted bun, a tangy sauce, and crisp toppings play a supporting role, but the juicy patty is the star. While there might be debate over the best way to cook a burger, there’s one element almost every expert agrees on when it comes to making the juiciest, tastiest patties that don’t shrink: the fat content. When shopping for ground beef or preformed patties, you should look for 80/20 on the label. Here’s why.