What to Do With Brisket Trimmings

Sort them into three piles while you trim, because the piles have nothing to do with each other: soft fat to render, lean scraps to grind or braise, and hard fat for the bin. Doing that at the board costs you nothing. Doing it afterwards, out of a single bag of cold mixed trim, is a miserable half hour that most people skip — which is why so many people throw the whole lot away.

On a typical whole packer of 13 to 16 pounds, there is somewhere around two to four pounds of material in question. That is a range from the shape of the cut rather than a published figure, and it swings a long way: how the brisket was trimmed at the plant matters more than how you trim it, and a fatty Prime packergives up far more than a closely trimmed Choice one — and a Wagyu-graded brisket more again, which is one of the quieter arguments for and against paying for one. Either way, the majority of it is usually soft fat, and soft fat has one excellent use.

One rule before anything else: trim for the brisket, never for the trimmings. The target our trimming guidesets — the cap down to a consistent quarter inch, the hard deckle fat out, the thin edges squared off — is set by what makes a good brisket. Whatever falls off is a by-product. Over-trimming to fill the rendering pan costs you the thing you actually came for.

The three materials, and how to tell them apart

Soft fat. Most of the fat cap, plus the softer intermuscular fat. It is pliable at refrigerator temperature, you can dent it with a thumbnail, and it is pale cream rather than chalk white. This is the rendering pile and it should be the biggest one.

Hard fat.Chiefly the deckle — the dense, waxy wedge between the point and the flat — plus any fat that feels like a candle rather than like butter. It does not render at smoking temperatures, which is exactly why our trimming guide tells you to cut it out, and it will not render pleasantly in a pan either. Bin it. You are not missing anything.

Lean scraps. Whatever actual muscle comes away: the squared-off thin end of the flat, the pieces you tidy off the edges, the bits attached to fat you decided to remove. This is real beef and it is worth keeping separate from everything else.

And one category that is none of the above: silverskin, heavy membrane and anything glandular.Silverskin is the iridescent connective sheet that goes rubbery rather than tender. Glandular tissue is a firm, pale, irregular nodule that looks like neither fat nor muscle — it is a lymph node, and it does not belong in food or in your rendering pan. If you are unsure whether a piece of hard fat is worth keeping, bin it. The whole point of this page is that you have plenty.

Use one: render it into tallow

This is where most of the volume should go, and it is the use with the best return on effort.

Cut the soft fat into roughly one-inch cubes — smaller renders faster and more evenly, and cold fat cubes cleanly — and put it in a pan or a foil tray with a splash of water to stop it catching before any fat has melted out. Then render it low and slow until the solids have shrunk to crisp brown bits and the liquid is clear. Strain it through a fine sieve into a jar and refrigerate.

The traditional move is to do this on the smoker, in a tray on the grate beside or below the brisket, while the brisket cooks. The heat is already paid for, the long gentle temperature is exactly what rendering wants, and the tallow picks up a little smoke. It also means the fat is ready at roughly the moment you might want it at the wrap. Our tallow guidehas the full method and — more usefully — an honest account of how much adding it at the wrap actually accomplishes, which is less than the current enthusiasm suggests.

What you end up with keeps for months refrigerated and is a genuinely good cooking fat: roast potatoes, searing steak, frying eggs, the base of a pot of beans. It is also the correct fat for a brisket-fat pan sauce if you go that way.

Use two: grind the lean for burgers

Brisket is one of the great burger grinds. It has a deep, beefy flavor that chuck does not, and the texture holds together well. Steakhouse blends routinely include it for exactly that reason.

The one thing to be deliberate about is the ratio. Aim for roughly 80 parts lean to 20 parts fat by weight, which means weighing your piles rather than eyeballing them — trimmings skew heavily fatty, and a grind that is 40% fat makes a burger that shrinks to nothing and flares on the grill. If your lean pile is small, the honest answer is that you do not have enough for a burger batch; freeze it and add the next brisket’s scraps to it.

We carry no meat grinder in our product registry, so we are not going to name one. The practical options are a stand-mixer grinder attachment if you already own the mixer, a hand-crank grinder, or — the one most people should use — taking the bag to a butcher counter and asking them to run it. Most will, often for nothing. Keep the meat very cold right up to the moment it is ground, whichever route you take: warm fat smears instead of cutting, and a smeared grind makes a pasty burger.

Use three: stock, beans and a braise

For lean scraps that are not going to become burgers, there are three good destinations and all of them are better than the bin.

Stock. Brown the scraps hard in a little of your own tallow, cover with water, add an onion and a couple of bay leaves, and simmer for a few hours. Brisket scraps make a dark, gelatinous beef stock that is a long way from a bouillon cube.

Beans. The Central Texas answer. A pot of pinto beans with brisket trimmings rendered into the base is the side dish that belongs with the brisket you are about to cook, and it uses both piles at once.

A small braise. Cubed lean scraps, seasoned with the same rub you are using on the brisket, browned and then braised for a couple of hours, make an excellent chili or a filling for tacos. This is essentially what you would do with a chuck roast, on a smaller scale.

What goes where, at a glance

This table is our own sorting guide, reasoned from how each tissue behaves under heat. It is not a published classification. The food-safety handling of raw beef trimmings follows the USDA guidance cited below.

Handling and storage, briefly

Trimmings are raw beef and nothing more, so the ordinary rules apply rather than the shorter timelines for cooked brisket. Keep them cold while you work — a bowl in the refrigerator rather than on the counter, especially if trimming is taking you the best part of an hour — and remember that the USDA danger zone starts at 40°F, which a bowl of fat on a warm kitchen counter clears quickly.

If you are not rendering the same day, freeze the fat and the lean separately, flat, and label them. Frozen brisket fat and frozen brisket lean are indistinguishable at six weeks, and a bag of mystery beef in the freezer is the same waste you were trying to avoid.

One last thing worth doing the first time: weigh the piles. It takes ten seconds, it tells you whether you are trimming to the quarter-inch target or well past it, and it is the quickest feedback loop available on the one step of a brisket cook that matters most.