How to Trim a Brisket (Step by Step)

How do you trim a brisket? Trim the fat cap down to about ¼ inch, remove the hard fat between the point and the flat, round off thin edges so they don't burn, and square up the flat so it cooks evenly. A 6" boning knife does the precise work. Our pick is the Dalstrong Gladiator Series 6" Boning Knife ($69): German X50CrMoV15 at 54–56 HRC with a 16–18° edge, tough enough for a 15-pound packer. Once it's cooked, slice with a long blade like the Gladiator 12" Slicing Knife ($99).

Before you start

  • Trim it cold. Straight from the fridge, fat is firm and cuts cleanly. Some pitmasters put it in the freezer for 20–30 minutes first.
  • Hone your knife. Fat dulls an edge fast; keep a ceramic honing rod ($79) nearby.
  • Use a big board on a damp towel, and save trimmings for tallow or grind.

Step by step

  1. Fat side down: remove the deckle. Find the hard, waxy fat on the meat side where the point meets the flat and cut it out. Hard fat won't render.
  2. Remove silver skin on the flat. See how to remove silver skin.
  3. Square the flat. Trim the thin edge of the flat so it's even in thickness and won't dry out.
  4. Flip it fat side up. Trim the fat cap to an even ¼ inch across the whole surface.
  5. Round the edges. Take off sharp corners and hanging flaps so smoke and heat flow evenly.
  6. Shape it aerodynamically. A smooth, rounded shape cooks and barks more evenly.

How much to trim

Part Target
Fat cap About ¼ inch, even
Hard fat (deckle) Remove completely
Thin flat edge Trim until even with the rest of the flat
Loose flaps Remove
Typical trim loss A good chunk of a packer's weight, mostly fat

Knives for brisket day

Boning Knife 6", Crimson Red ABS Handle, Gladiator Series, NSF Certified

Boning Knife 6", Crimson Red ABS Handle, Gladiator Series, NSF Certified ($69). Spec sheet: German X50CrMoV15 steel, 54–56 HRC, 16–18° edge, NSF certified. For trimming fat and silver skin.

Boning Knife 6", Shogun Series, ELITE

Boning Knife 6", Shogun Series, ELITE ($119). Spec sheet: Japanese AUS-10V core, 62+ HRC, 8–12° edge, 66-layer Damascus or hammered finish. A finer, sharper option for precise trimming.

Slicing & Carving Knife 12", Gladiator Series, NSF Certified

Slicing & Carving Knife 12", Gladiator Series, NSF Certified ($99). Spec sheet: German X50CrMoV15 steel, 54–56 HRC, 16–18° edge, NSF certified. A long blade for slicing the cooked brisket across the grain in one stroke.

For slicing advice, see best brisket slicing knives. New to brisket? Start with what is brisket.

FAQ

How do you trim a brisket?

Trim the fat cap to about ¼ inch, cut out the hard fat between point and flat, remove silver skin, square the flat and round the edges. A 6" boning knife like the Dalstrong Gladiator Series 6" Boning Knife ($69) does the job.

How much fat should I leave on a brisket?

About ¼ inch on the fat cap, evenly spread.

Should you trim brisket cold?

Yes. Cold fat is firm and cuts cleanly. Many cooks chill it in the freezer for 20 to 30 minutes first.

What knife is best for trimming brisket?

A 6-inch boning knife for trimming, and a 12-inch slicer for slicing after cooking.


How to Trim a Brisket (Step by Step)

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