Great grilling with 3 tricks to tender, tasty beef

BY W. WAYT GIBBS
Associated Press

You don’t have to go to some high-end steakhouse or shell out $200 a pound for ultramarbled Wagyu beef from Japan to get flavorful, tender beef for your next barbecue. Just keep three crucial factors in mind: the grade, the grain and the aging. A well-informed purchase and a couple of easy prep steps can make the difference between a so-so steak and one that sends your eyeballs skyward.

Step No. 1: buy the best meat that fits your budget. To do that, you need to know a bit about how beef is graded in the U.S. The system is based mostly on the age of the animal and the amount of marbling in the meat.

“USDA prime” is the highest grade. Only about 3 percent of cattle meet the criteria, so most prime-grade meat is snatched up by fancy restaurants and specialty butchers before it makes it to supermarkets. Below that is “choice,” followed by “select.” Anything below these is best avoided for steaks, ribs and roasts. In Canada, the equivalent grades are called “Canada prime,” “AAA,” and “AA.”

Though the visible fat content of red meat is easy to measure, researchers have found that it accounts for only about 5 percent of the variation in meat tenderness. The Australian government uses a much more reliable grading system that takes into account other important factors, including what the animal ate, how it was treated, and the pH of its muscles, which reflects how humanely it was slaughtered.

If cattle are exhausted, shivering, injured or highly stressed at the time they are killed, their muscles deplete their natural fuel store of glycogen, and the pH of the meat is abnormal as a result. Beef that is unusually dark, firm and dry often is a product of poor slaughterhouse practices.

A grade stamped on the package is one useful piece of information about the quality of the meat, but it isn’t the end of the story. Some of the best beef is not graded at all; it is sold by small producers who can’t afford to pay the high costs of having a USDA grader on site. In other cases, official-sounding labels — such as Certified Angus Beef — are not grades, but rather brand names used by loose associations of ranchers to make their meat appear distinctive.

Step No. 2: Whether you spring for a prime tenderloin or a select flat-iron steak, you can get the most tenderness out of the cut if you pay attention to the grain. Just like wood, meat is a collection of long, skinny fibers. If you cut the meat along the fibers, it’s like sawing boards out of a tree trunk: the resulting pieces are very strong and hard to chew. Instead, slice across the fibers; the tougher the cut, the thinner the slices should be. Each bite will then fall apart more easily and release more of its juices and flavor.

Step No. 3: For a real steakhouse experience, try aging your meat before you cook it. The best steakhouses use special humidity-controlled rooms to dry-age beef for a month or more. The drying process concentrates sugars, protein fragments, and other flavorful molecules to yield unparalleled taste. But because the steaks shrink as they dry and much of the exterior has to be trimmed off before cooking, this is typically an expensive step.

Here’s a shortcut: brush Asian fish sauce onto the steak (use about 3 grams of sauce for every 100 grams of meat). Put the coated steak in a zip-closure bag, then remove the air by submerging the bag in water while holding the open end just above the surface (the water forces the air out of the bag). Seal the bag, then lift it out of the water. Refrigerate the sealed meat for three days before you cook it. You may be surprised by how much tenderer the steak becomes and by the depth of its meaty, umami flavor.

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Photo credit: Nathan Myhrvold / Modernist Cuisine, LLC

The Chemistry of the Barbecue “Stall”

The “stall” is widely known among serious barbecuers. Well into cooking, the temperature of uncovered meat stops rising and may even fall slightly before it climbs again. Most barbecue experts say this stall occurs when connective tissue in the meat softens and fat starts to render, which does occur, but it doesn’t cause the stall.

The stall is quite real, but it is not due to softening collagen as the graph below shows. We cooked two briskets side-by-side in a convection oven, which mimicked the air temperature in a smoker, but was much more consistent and thus better suited for the experiment. We left one brisket uncovered (blue curve) and vacuum sealed the other (green curve). Sensors measured the core temperature of each brisket as well as the dry-bulb (black curve) and wet-bulb (red curve) air temperatures in the oven.

The stall clearly occurred in the uncovered brisket 2-4 hours into cooking as the wet-bulb temperature in the oven fell. The stall ended after about four hours because the surface of the brisket had dried out enough that it was above the wet-bulb temperature. The temperature of the vacuum-sealed brisket, in contrast, rose steadily to the oven’s set point in about three hours. Any effect due to collagen or fat rendering would occur in both briskets, but we see the stall only in the uncovered one.

Early in the cooking, the wet-bulb temperature rose as the uncovered brisket evaporated, increasing the relative oven humidity to about 72%. But the humidity then began to drop as evaporation could no longer keep pace with the air venting out of the oven. By the eight-hour mark, the humidity was below 50%, and the wet-bulb temperature was down almost 10 °C / 18 °F from its peak.

The core of the uncovered brisket stalled. In this test, we left the brisket dry, but if we had slathered it with sauce periodically as many barbecue chefs do, we could prolong the stall by keeping the surface wet.

Sous vide cooking is, in our opinion, by far the best way to achieve the perfect cooking rate necessary for great barbecue. We barbecued in two distinct steps: smoking to impart the smoke flavor, followed by sous vide cooking to achieve the optimum texture and done-ness.

Smoking before a long sous vide cooking step has the advantage of proteins remaining intact and able to react readily with smoke. Smoked food continues to change while being cooked sous vide: its pellicle darkens, the rind becomes firmer, and the smoky flavor mellows.

The alternative, of course, is to smoke the food after cooking it sous vide. This also works well, but a longer smoking time is required to develop a robust smoked flavor and appearance. This is because precooking denatures a large fraction of the proteins in a cut of meat or a piece of seafood, which leaves the flesh less reactive to the smoke.

Whichever approach you choose to take and you should try both ways to judge the differences yourself the remarkable texture that is the hallmark of sous vide cooking, and the consistency it brings to smoking, makes it the best way to smoke meats and seafood. Alternatively, you could substitute for the sous vide step a combi oven, CVap oven, or low-temperature steamer.

You can find our recipe for Smoked Dry-Rub Pork Ribs here.

–This post was adapted from Modernist Cuisine. Too see what others think of our pastrami, see the Steven Colbert clip below, and click here to read about what Steven Raichlen has to say on The Barbecue Bible.

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Sous Vide Rare Beef Jus: An In-Depth Look

If you have registered with modernistcuisine.com and opted to receive recipes by email, this is already old news to you, but for everyone else, we’d like to announce the latest addition to our recipe library. We’ve taken an in-depth look at the recipe for Sous Vide Rare Beef Jus, including tips, plating ideas, and personal accounts from the Kitchen Team. There’s even a video with a centrifugal twist on the recipe from the book. Give it a try, and let us know how it turns out by posting in the Cooks Forum.

Yes, You Are Overcooking Your Food

Scientific American

Scientific American magazine has published a lengthy excerpt of from the Food Safety Rules chapter of Modernist Cuisine. Ever wonder where all those official guidelines for cooking pork, chicken, and other foods came from? Do they reflect rigorous scientific research, or just the codification of cultural preferences? Get the full scoop here, and learn why you really don’t need to cook your chicken breasts and pork chops to oblivion in order to make them safe to eat.

Scientific American also has created a fascinating slideshow of some of the more amazing photos in the book. It’s titled “A New View of Food and Cooking.”

Chicken breasts cooked to (L to R) 52 C, 55 C, 60 C, and 80 CChicken breasts cooked(left to right) to 52 C / 126 F, 55 C / 131 F, 60 C / 140 F,
and 80 C / 176 F. Notice how the meat shrinks and dries out at higher cooking temperatures.