Do you have to rest brisket?

Online Answer
You need to rest the brisket in the open at room temperature. Waiting to eat your brisket for a couple of hours even after it's out of the smokers is difficult. Resting brisket for an hour or two will give you the juiciest, tenderest meat. After all, the best briskets come to the cooks who rest their smoked meat.
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What Creates the Smoke Ring. The smoke ring is produced by a chemical reaction between the pigment in the meat and the gases produced from wood or charcoal. When burned, these organic fuels produce nitrogen dioxide gas. This gas infuses into the surface of the meat as it cooks surrounded by the smoke.
I like to plan 90 minutes for every pound of smoked brisket, including the rest or hold temperature, when cooking at 250 degrees Fahrenheit. The total cook can be anywhere from 8 hours to 16 depending on the size of the cut. It is normal that every brisket you cook will vary in time.
Apply salt and rub the night before If you can, it's best to trim your brisket the night before you plan on cooking it. This way you can apply the salt and rub and give it plenty of time to work its way in.
Aluminum foil is the original Texas Crutch method for wrapping brisket. To wrap a brisket in foil, measure out two arm-length pieces of heavy-duty aluminum foil. Lay the pieces on top of each other, and the brisket on top of them. Then simply wrap the brisket up as tight as you can..
It's like this: They are both beef, but not the same thing. ... Corned beef starts out as beef brisket and is brine-cured first. The brine-cure is what makes it corned beef and that curing process is where it gets its color from. At stores, beef brisket will be labeled beef brisket and have a good amount of fat on it.