Short answerA burger stays juicy when it has enough fat (around 80/20), the meat is loosely formed (not packed tight), it isn't pressed during cooking on a thick patty, and it isn't overcooked. Fat and gentle handling keep the juices in; over-mixing, over-pressing and over-cooking squeeze them out.
Juiciness isn't luck. It's a few simple things going right — and avoiding a few classic mistakes.
The things that keep it juicy
- Enough fat — around 20%. Fat is moisture and flavour.
- Loose handling — form the patty gently; packing it tight makes it dense and dry.
- Right cook — pull it at the right point; overcooking is the number one juice killer.
- Rest a moment — a short rest lets juices settle instead of running out on first bite.
The juice killers
Pressing a thick patty flat with a spatula squeezes the juice straight onto the grill (the one exception is the initial smash on a thin patty, which is about crust, done once). Over-mixing the beef, using lean meat, and cooking it to oblivion all dry it out.
Why ours stay juicy
Australian beef ground for the right fat content, gently formed, cooked to order. The ideal fat ratio →