This might be a dumb question but here goes.
I made the brine yesterday for a pastrami. I did one last year and am doing this one the same. Its basically Ruhlmans and Polcyn's recipe from their book. This is the recipe.
1 gallon water
2 cups Morton’s kosher salt
1/2 cup sugar
1 ounce (5 teaspoons) pink salt (see Note)
3 garlic cloves, minced
4 tablespoons pickling spice (above recipe or store-bought)
One 5-pound well-marbled (first-cut) beef brisket
My question is does the amount of brine need to be made specifically for the weight of the meat that you will use? Or does the meat just need enough of the brine to cover it? Yesterday I trimmed up the brisket and then weighted it. Using that weight I made the right amount of brine. Could I just have made a big batch of brine and use however much I need to cover the meat?