Why do thick burger patties swell into a round ball on the grill?

The exterior edge of the patty cooks and contracts faster than the interior, forcing the expanding central meat upward into a dome. Pressing a shallow thumbprint dimple in the center of the raw patty keeps it perfectly flat.

Why is 80/20 the gold standard fat ratio for burgers?

80/20 provides 20% intramuscular fat, which lubricates muscle fibers and provides just enough rendered tallow to fry the exterior crust while retaining a tender, juicy core.

When should you season raw burger patties with salt?

Season only the outside surfaces right before placing the patty on the grill. Salting ground beef beforehand dissolves myosin proteins, cross-linking fibers into a tough, springy sausage texture.

How much larger than the bun should a raw burger patty be formed?

Form raw patties approximately 1/2 to 3/4 inch wider than the hamburger bun. Because patties shrink ~20% in diameter during cooking, this ensures edge-to-edge bun coverage.

Why shouldn't you press burgers with a spatula while grilling?

Pressing patties after the initial 30 seconds squeezes out hot juices and rendered fat directly into the coals, creating flare-ups and leaving the finished burger dry and tough.

Why is coarse-ground beef superior for gourmet burgers?

Coarse grinding (using a 3/8-inch plate) creates distinct meat morsels with loose interstitial pockets that trap rendered juices, whereas fine grinding packs fibers tightly into a dense patty.

Burger Patty Yield, Grind Ratio & Smash Shrinkage Calculator

Master burger geometry and fat-to-lean physics. Calculate raw vs. cooked patty weight, bun-diameter shrinkage, smash burger lace crust rendering, center dimple anti-doming kinetics, and optimal 80/20 vs 75/25 fat ratios.

Pro Tip for Burger Patty Yield, Grind Ratio & Smash Shrinkage Calculator: Always measure with an instant-read thermometer probe and rest pasture-raised meats on an elevated wire rack for optimal juiciness and flavor retention.

Variables & Parameters

Total Raw Ground Beef (lbs) 5 lbs

Burger Style & Raw Patty Size

Fat-to-Lean Blend Ratio

Cooking Surface & Technique

Calculated Targets

Primary Target

Optimal Target

Patties Yielded

Cooked Patty Oz

Diameter Shrink Pct

Guests Fed Count

Butcher Purchase Note

Precision Chef & Butchery Protocol

1

Keep Meat Cold Until Cooking: Warm ground beef fat smears into the muscle fibers during handling. Keep ground beef ice-cold until it touches the hot pan.
2

Never Salt Ahead of Time: Mixing salt into ground beef dissolves myosin, turning the texture rubbery and sausage-like. Always salt the exterior immediately before grilling.
3

The Center Thumb Dimple: For thick patties, press a 1/2-inch indentation in the center. As outer edges shrink, the dimple expands, resulting in a perfectly flat patty instead of a dome.
4

Only Smash in the First 30 Seconds: Smashes after meat proteins begin cooking expels liquefied juices and dries out the burger.

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