Large size of our all purpose Beef rub. All purpose Beef rub. Rubs are a great way to add flavor to meat. Rubs almost always contain salt because salt amps up flavor and helps form a crust. You can put a rub right on the bare meat, or you can help it stick by moistening the meat with some water, mustard, ketchup, or use cooking oil. We recommend cooking oil because it helps to keep the meat from sticking to your cooking surface and because most of the herbs and spices are oil soluble, not water soluble. Far more important is what is in the rub than what you choose to put under the rub. INGREDIENTS: Black Pepper, Salt, Sugar, Onion Powder, Garlic Powder, Ancho Chili Powder, Mustard Powder, Cayenne Powder.